Technical reference
Synology DS223j specifications
Diskless enclosure with fixed 1 GB RAM. Storage drives are purchased separately.
Complete specifications with requirements, upgrade limits and sources. For our buying judgment, reviews and prices, return to the buying guide.
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Search all 116 specifications, including conditions and limits.
Processor and memory
The fixed 1GB cannot be upgraded later.
| CPU | Realtek RTD1619B[8] Current manufacturer Specifications table 1, row 3; CPU. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| Cores / threads | 4 / 4[1] |
| Clock | 1.7 GHz[1] |
| Architecture | 64-bit[1] |
| Factory memory | 1 GB DDR4 non-ECC[8] Current manufacturer Specifications table 1, row 11; Memory. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Official maximum / upgrade | 1 GB fixed; no memory upgrade[1][4] |
Drives, capacity and installation
Changing disks requires opening the enclosure; 2.5-inch drives need an optional holder.
| SATA bays | 2 × 3.5-inch SATA HDD or 2.5-inch SATA SSD[1] |
|---|---|
| Drive installation | No hot swap; 2.5-inch drives require optional Type C holder[1] |
| M.2 / expansion | No M.2 slots or expansion-unit support[1] |
| RAID | SHR, Basic, JBOD, RAID 0, RAID 1[1] |
| Volume limits | 108 TB per volume; 64 internal volumes[1] Software limit, not a promise that two installed disks provide 108 TB usable capacity. |
| Internal filesystems | Btrfs, ext4[1] |
| External filesystems | Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT[1] |
| Btrfs / snapshots version | Available from DSM 7.2-64570[1] |
Network and connections
Backups, photos and other apps
Match the software features to a modest home workload and read the limits in context.
| Backup | Hyper Backup folder and package backup; Snapshot Replication[1] |
|---|---|
| Surveillance licenses | 2 included; additional camera licenses sold separately[1] |
| Synology Drive guideline | 5 users; 100,000 indexed/hosted files[1] Vendor test: 20% active, 80% idle; SSD volume where supported; Btrfs, unencrypted shares. Exceeding guidelines may slow responses, not automatically block use. |
| Surveillance H.264 ceiling | 1080p: 12 channels / 360 FPS; 4K: 11 / 110 FPS[1] Fully populated, factory RAM, continuous RTSP recording. SRTP reduces published capacity. |
| Synology Photos | Facial recognition listed; object recognition not listed[1] |
Size, noise and power
Power and noise ratings use laboratory conditions and depend on installed drives.
| Dimensions (H × W × D) | 165 mm × 100 mm × 225.5 mm[8] Current manufacturer Specifications table 1, row 22; Appearance. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| Weight (enclosure) | 0.88 kg[8] Current manufacturer Specifications table 1, row 23; Appearance. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Fans | 92 mm × 92 mm × 1 pcs[8] Current manufacturer Specifications table 1, row 25; Others. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| AC input | 100V to 240V AC[8] Current manufacturer Specifications table 1, row 33; Others. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Manufacturer power rating | 16.31 watts (Access) 4 watts (HDD Hibernation)[8] Current manufacturer Specifications table 1, row 35; Others. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Manufacturer idle noise | 18.2 dB(A)[8] Current manufacturer Specifications table 1, row 29; Others. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Power management | Scheduled on/off; Wake on LAN/WAN; automatic power recovery[1] |
| Adapter | 60 watts[8] Current manufacturer Specifications table 1, row 32; Others. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Warranty, box contents and operating conditions
Storage drives and optional accessories are outside the enclosure package.
| Operating temperature | 0–40 °C[1] |
|---|---|
| Storage temperature | −20–60 °C[1] |
| Humidity | Operating 8–80% RH; storage 5–95% RH[1] |
| Certifications | FCC, CE, BSMI, VCCI, RCM, UKCA, EAC, CCC, KC, BIS; RoHS[1] |
| Standard hardware warranty | 2 years[1] |
| Optional extension | 2 additional years via Extended Warranty Plus[1] Paid option in eligible North American/European markets; eligibility and purchase timing apply. |
| In the box | NAS, adapter, power cord, LAN cable, accessory pack, quick guide[1] |
Official hardware — CPU
Complete current manufacturer values and test conditions.
| CPU Quantity | 1[8] Current manufacturer Specifications table 1, row 4; CPU. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| CPU Cores | 4[8] Current manufacturer Specifications table 1, row 5; CPU. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| CPU Threads | 4[8] Current manufacturer Specifications table 1, row 6; CPU. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| CPU Architecture | 64-bit[8] Current manufacturer Specifications table 1, row 7; CPU. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| CPU Frequency | 1.7 GHz[8] Current manufacturer Specifications table 1, row 8; CPU. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Hardware Encryption Engine | Supported[8] Current manufacturer Specifications table 1, row 9; CPU. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official hardware — Memory
Complete current manufacturer values and test conditions.
| Memory — conditions and limits | Synology may revise pre-installed memory module specifications in response to component lifecycle and supply conditions. All revised components undergo the same rigorous validation to ensure equivalent compatibility, stability, and performance.[8] Current manufacturer Specifications table 1, row 12; Memory. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|
Official hardware — Storage
Complete current manufacturer values and test conditions.
| Drive Bays | 2 × 3.5" SATA HDD or 2.5" SATA SSD[8] Current manufacturer Specifications table 1, row 14; Storage. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| Hot Swappable Drive* | Not supported[8] Current manufacturer Specifications table 1, row 15; Storage. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Storage — conditions and limits | To install 2.5" drives, optional drive holder (Type C) must be purchased separately. Learn more[8] Current manufacturer Specifications table 1, row 16; Storage. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official hardware — External Ports
Complete current manufacturer values and test conditions.
| RJ-45 1GbE LAN Port | 1[8] Current manufacturer Specifications table 1, row 18; External Ports. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| USB 3.2 Gen 1 Port | 2[8] Current manufacturer Specifications table 1, row 19; External Ports. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| External Ports — conditions and limits | MTU value of 1GbE LAN port has a limit of 1500.[8] Current manufacturer Specifications table 1, row 20; External Ports. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official hardware — Others
Complete current manufacturer values and test conditions.
| Fan Speed Mode | Full-Speed Mode Cool Mode Quiet Mode Low-power Mode[8] Current manufacturer Specifications table 1, row 26; Others. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| Brightness Adjustable Front LED Indicators | Supported[8] Current manufacturer Specifications table 1, row 27; Others. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Power Recovery | Supported[8] Current manufacturer Specifications table 1, row 28; Others. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Scheduled Power On / Off | Supported[8] Current manufacturer Specifications table 1, row 30; Others. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Wake on LAN / WAN | Supported[8] Current manufacturer Specifications table 1, row 31; Others. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Power Frequency | 50/60 Hz, Single Phase[8] Current manufacturer Specifications table 1, row 34; Others. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| British Thermal Unit | 55.62 BTU/hr (Access) 13.64 BTU/hr (HDD Hibernation)[8] Current manufacturer Specifications table 1, row 36; Others. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Others — conditions and limits | For more information on how power consumption is measured, refer to this article . Noise Level Testing Environment: Fully loaded with Seagate 2 TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%[8] Current manufacturer Specifications table 1, row 37; Others. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official hardware — Temperature
Complete current manufacturer values and test conditions.
| Operating Temperature | 0°C to 40°C (32°F to 104°F)[8] Current manufacturer Specifications table 1, row 39; Temperature. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| Storage Temperature | -20°C to 60°C (-5°F to 140°F)[8] Current manufacturer Specifications table 1, row 40; Temperature. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. Manufacturer Fahrenheit value conflicts with -20°C (which equals -4°F); retain Celsius for planning. Manufacturer Fahrenheit lower bound is inconsistent; −20°C equals −4°F. |
| Operating Humidity | 8% to 80% RH[8] Current manufacturer Specifications table 1, row 41; Temperature. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Storage Humidity | 5% to 95% RH[8] Current manufacturer Specifications table 1, row 42; Temperature. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official hardware — Certification
Complete current manufacturer values and test conditions.
| Certification | FCC CE BSMI VCCI RCM UKCA EAC CCC KC BIS[8] Current manufacturer Specifications table 1, row 44; Certification. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|
Official hardware — Warranty
Complete current manufacturer values and test conditions.
| Warranty | 2-year hardware warranty, extendable to 4 years with Extended Warranty Plus[8] Current manufacturer Specifications table 1, row 46; Warranty. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| Warranty — conditions and limits | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) Extended Warranty Plus is only available in Europe and North America. Refer to the Extended Warranty Plus website for details on supported countries/regions. ( Learn more )[8] Current manufacturer Specifications table 1, row 47; Warranty. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official hardware — Environment
Complete current manufacturer values and test conditions.
| Environment | RoHS Compliant[8] Current manufacturer Specifications table 1, row 49; Environment. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|
Official hardware — Packaging Content
Complete current manufacturer values and test conditions.
| Packaging Content | Main Unit × 1 Accessory Pack × 1 AC Power Adapter × 1 AC Power Cord × 1 RJ-45 LAN Cable × 1 Quick Installation Guide × 1[8] Current manufacturer Specifications table 1, row 51; Packaging Content. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|
Official hardware — Optional Accessories
Complete current manufacturer values and test conditions.
| Optional Accessories | Plus Series 3.5" SATA HDD: HAT3300 Series Disk Holder: Type C[8] Current manufacturer Specifications table 1, row 53; Optional Accessories. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|
Official DSM — Storage Management
Complete current manufacturer values and test conditions.
| Maximum Single Volume Size | 108 TB[8] Current manufacturer Specifications table 2, row 3; Storage Management. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| Maximum Internal Volume Number | 64[8] Current manufacturer Specifications table 2, row 4; Storage Management. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Supported RAID Type | Synology Hybrid RAID Basic JBOD RAID 0 RAID 1[8] Current manufacturer Specifications table 2, row 5; Storage Management. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| RAID Migration | Basic to RAID 1[8] Current manufacturer Specifications table 2, row 6; Storage Management. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Volume Expansion with Larger HDDs | Synology Hybrid RAID RAID 1[8] Current manufacturer Specifications table 2, row 7; Storage Management. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Storage Management — conditions and limits | Actual maximum storage pool and volume sizes vary depending on drives used, the number of drive bays available, and the RAID configuration. Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.[8] Current manufacturer Specifications table 2, row 8; Storage Management. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official DSM — File System
Complete current manufacturer values and test conditions.
| Internal Drives | Btrfs ext4[8] Current manufacturer Specifications table 2, row 10; File System. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| External Drives | Btrfs ext4 ext3 FAT32 NTFS HFS+ exFAT[8] Current manufacturer Specifications table 2, row 11; File System. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| File System — conditions and limits | Btrfs file system is available from DSM 7.2-64570.[8] Current manufacturer Specifications table 2, row 12; File System. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official DSM — File Services
Complete current manufacturer values and test conditions.
| File Protocol | SMB AFP NFS FTP WebDAV Rsync[8] Current manufacturer Specifications table 2, row 14; File Services. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| Maximum Number of SMB Connections (FSCT-Based) | 5[8] Current manufacturer Specifications table 2, row 15; File Services. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. Read the conditions in this group: expanded RAM, SSD volumes and partly idle simulated users may be used. |
| Windows Access Control List (ACL) Integration | Supported[8] Current manufacturer Specifications table 2, row 16; File Services. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| NFS Kerberos Authentication | Supported[8] Current manufacturer Specifications table 2, row 17; File Services. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| File Services — conditions and limits | Connection value of this model is tested with Synology SATA HDD fully populated and all onboard network ports SMB performance was evaluated using Microsoft File Server Capacity Tool (FSCT) version 1.3, with the following configuration: Test workload: HomeFolder scenario provided by the FSCT tool Test duration: 600 seconds Domain controller & FSCT controller: Windows Server 2022 FSCT clients: 8 × Windows 10 machines SMB feature: Directory leasing enabled[8] Current manufacturer Specifications table 2, row 18; File Services. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official DSM — Account & Shared Folder
Complete current manufacturer values and test conditions.
| Maximum Local User Accounts | 256[8] Current manufacturer Specifications table 2, row 20; Account & Shared Folder. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| Maximum Local Groups | 64[8] Current manufacturer Specifications table 2, row 21; Account & Shared Folder. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Maximum Shared Folder | 64[8] Current manufacturer Specifications table 2, row 22; Account & Shared Folder. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Maximum Shared Folder Sync Tasks | 2[8] Current manufacturer Specifications table 2, row 23; Account & Shared Folder. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official DSM — Hyper Backup
Complete current manufacturer values and test conditions.
| Folder and Package Backup | Supported[8] Current manufacturer Specifications table 2, row 25; Hyper Backup. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|
Official DSM — Log Center
Complete current manufacturer values and test conditions.
| Syslog Events per Second | 200[8] Current manufacturer Specifications table 2, row 27; Log Center. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. Read the conditions in this group: expanded RAM, SSD volumes and partly idle simulated users may be used. |
|---|
Official DSM — General Specifications
Complete current manufacturer values and test conditions.
| Supported Protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV[8] Current manufacturer Specifications table 2, row 29; General Specifications. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| Supported Browsers | Chrome Firefox Edge Safari[8] Current manufacturer Specifications table 2, row 30; General Specifications. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Supported Language | English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文[8] Current manufacturer Specifications table 2, row 31; General Specifications. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| General Specifications — conditions and limits | For an updated list of supported browser versions, check the DSM Technical Specifications .[8] Current manufacturer Specifications table 2, row 32; General Specifications. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official DSM — Synology Chat
Complete current manufacturer values and test conditions.
| Synology Chat | Supported[8] Current manufacturer Specifications table 2, row 35; Synology Chat. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|
Official DSM — Download Station
Complete current manufacturer values and test conditions.
| Maximum Concurrent Download Tasks | 80[8] Current manufacturer Specifications table 2, row 37; Download Station. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|
Official DSM — SAN Manager
Complete current manufacturer values and test conditions.
| Maximum iSCSI Target Number | 2[8] Current manufacturer Specifications table 2, row 39; SAN Manager. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| Maximum LUN | 4[8] Current manufacturer Specifications table 2, row 40; SAN Manager. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| LUN Clone/Snapshot, Windows ODX | Supported[8] Current manufacturer Specifications table 2, row 41; SAN Manager. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official DSM — Media Server
Complete current manufacturer values and test conditions.
| DLNA Compliance | Supported[8] Current manufacturer Specifications table 2, row 43; Media Server. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|
Official DSM — Synology Photos
Complete current manufacturer values and test conditions.
| Facial Recognition | Supported[8] Current manufacturer Specifications table 2, row 45; Synology Photos. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|
Official DSM — Snapshot Replication
Complete current manufacturer values and test conditions.
| Maximum Snapshots per Shared Folder | 128[8] Current manufacturer Specifications table 2, row 47; Snapshot Replication. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| Maximum Snapshots per LUN | 32[8] Current manufacturer Specifications table 2, row 48; Snapshot Replication. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Maximum Snapshots per System | 1,024[8] Current manufacturer Specifications table 2, row 49; Snapshot Replication. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Maximum Replication Tasks for Shared Folders | 16[8] Current manufacturer Specifications table 2, row 50; Snapshot Replication. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Maximum Replication Tasks for LUNs | 8[8] Current manufacturer Specifications table 2, row 51; Snapshot Replication. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Maximum Replication Tasks per System | 16[8] Current manufacturer Specifications table 2, row 52; Snapshot Replication. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Snapshot Replication — conditions and limits | Snapshot Replication is available from DSM 7.2-64570.[8] Current manufacturer Specifications table 2, row 53; Snapshot Replication. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official DSM — Surveillance Station
Complete current manufacturer values and test conditions.
| Default Licenses | 2 (Additional cameras require purchase of licenses)[8] Current manufacturer Specifications table 2, row 55; Surveillance Station. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|---|
| Maximum IP Cameras and Total FPS (H.264) | 1080p: 12 channels, 360 FPS 3M: 12 channels, 300 FPS 5M: 12 channels, 150 FPS 4K: 11 channels, 110 FPS[8] Current manufacturer Specifications table 2, row 56; Surveillance Station. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Maximum IP Cameras and Total FPS (H.265) | 1080p: 12 channels, 360 FPS 3M: 12 channels, 360 FPS 5M: 12 channels, 350 FPS 4K: 12 channels, 200 FPS[8] Current manufacturer Specifications table 2, row 57; Surveillance Station. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Surveillance Station — conditions and limits | Performance figures are obtained from testing conducted with the device fully populated with drives, with their default memory configuration, and under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads. Use NVR Selector to quickly find a suitable model based on your requirements. The number of video channels that can be viewed simultaneously is double the maximum number of cameras for the same codec and resolution. The values above are based on testing with RTSP streaming. If SRTP is enabled for all cameras, overall performance will decrease to 70% of the stated figures.[8] Current manufacturer Specifications table 2, row 58; Surveillance Station. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official DSM — Synology Drive
Complete current manufacturer values and test conditions.
| Maximum Number of Users | 5[8] Current manufacturer Specifications table 2, row 60; Synology Drive. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. Read the conditions in this group: expanded RAM, SSD volumes and partly idle simulated users may be used. |
|---|---|
| Maximum Number of Hosted Files | 100,000 (applies to files indexed or hosted by Synology Drive . For file access through other standard protocols, refer to the File Services section above)[8] Current manufacturer Specifications table 2, row 61; Synology Drive. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
| Synology Drive — conditions and limits | The suggested maximum number of users is based on the following workload: 20% of users randomly perform file operations (upload, download, move, and delete), and 80% of users are logged in but idle. Learn more Models with SSD support are tested with a single SSD volume. Exceeding the recommended numbers above will not block application operations, but may result in longer response time. Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.[8] Current manufacturer Specifications table 2, row 62; Synology Drive. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official DSM — Synology Office
Complete current manufacturer values and test conditions.
| Maximum Number of Users | 5[8] Current manufacturer Specifications table 2, row 64; Synology Office. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. Read the conditions in this group: expanded RAM, SSD volumes and partly idle simulated users may be used. |
|---|---|
| Synology Office — conditions and limits | The suggested maximum number of users is based on the following workload: 20% of users are executing random actions at an average of 30-second intervals, and 80% of users are logged in and viewing a file. Learn more Models with SSD support are tested with a single SSD volume. Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8 GB RAM[8] Current manufacturer Specifications table 2, row 65; Synology Office. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
Official DSM — VPN Server
Complete current manufacturer values and test conditions.
| Maximum Connections | 2[8] Current manufacturer Specifications table 2, row 67; VPN Server. Numbers are manufacturer ratings/guidelines, not ChooseCompute test results. |
|---|
Exact product identity & open questions
- Live TweakTown: Live 403; Wayback used for CDM 112/118 MB/s.
- Video: Full videos and transcripts were not reviewed. Embedded article screenshots were checked where recorded; this is not a complete video review.
- Retail price dates: Newegg buyboxes were rechecked on 2026-09-11; B&H returned 403. Other retailer observations retain their original dates. Prices and seller selection can change.
Sources
Research updated Sep 11, 2026. Individual source check dates are listed below. Measurements belong to the named reviewers; tested configurations and software versions may differ from the product you buy.
- [1] Synology DS223j product specifications ↗
Checked Sep 11, 2026 · Hardware + DSM tables, last updated Aug 6, 2026
- [2] TweakTown DS223j review ↗
Checked Sep 11, 2026 · Wayback; CDM 112/118 MB/s HAT3300 SHR
- [3] PCWelt DS223j test ↗
Checked Sep 11, 2026 · UHD 109 MB/s; small-file 35.87 MB/s
- [4] TechAdvisor DS223j review ↗
Checked Sep 11, 2026 · Soldered RAM; 2.5-inch holder
- [5] B&H DS223j enclosure-only product page ↗
Checked Sep 8, 2026 · MFR number, factory RAM, main new-product buy box, In Stock, price and shipping
- [6] Newegg DS223j diskless product page ↗
Checked Sep 8, 2026 · Main buy box: Sold by Newegg; Shipped by Newegg; Add to cart; model and diskless specification
- [7] Best Buy DS223j 1 GB diskless product page ↗
Checked Sep 8, 2026 · Description: DS223j / 1 GB RAM / 0 HDD installed / 0 SSD installed; buy box: $211.99 / Sold & shipped by Newegg Official / Add to cart
- [8] Synology DS223j product page ↗
Checked Sep 11, 2026 · Same current US product page
- [9] Amazon — DS223j ↗
Checked Sep 10, 2026 · Selected buy-box seller; Product information model; New offers. MAP-hidden main price is not inferred from other sellers or recommendations.
- [10] Newegg — DS223j ↗
Checked Sep 11, 2026 · Exact-model title, specification table, buybox price/seller and Add to cart; parent captured source
- [11] Synology DS223j Product Spec PDF ↗
Checked Sep 11, 2026 · Product Specifications PDF last updated Aug 6, 2026
- [12] StorageReview DS223j review ↗
Checked Sep 11, 2026 · 2x 22 TB WD Red Pro RAID 1; 128k 115 MB/s SMB and iSCSI
Research and review record
- Research: Grok 4.6 · Source research and data update
- Self-check: Grok 4.6 · Researcher self-check
- Independent review: GPT-6 (Codex) · Independent available original prose, official hardware/software tables and recorded chart review. Source-specific contradictions resolved or excluded. Current Newegg buyboxes checked; inaccessible merchants retain historical dates. Full videos not reviewed.
- Editorial integration: GPT-6 (Codex) · Editorial integration and validation
Independent review completed for the scope recorded in the audit.
Source evidence and review history (JSON)