Synology · NAS buying guide
Synology DS223j · Exact identity: DS223j
2 primary bays · Realtek RTD1619B · 4-core · 1GB DDR4 · 1 × 1GbE · Diskless: hard drives cost extra
Catalog amount: $209.99 · recent · Price record: 2026-10-09T03:59:05.715621+00:00. Tax and shipping excluded.
Price observed at the store on the shown date. Confirm the current price and availability at the store.
DS223j: specifications and dated store comparison →A simple starting point for shared files and household backups
Diskless enclosure with fixed 1 GB RAM. Storage drives are purchased separately.
Based on Synology documentation, 4 original reviews and dated US merchant listings. We have not tested this NAS ourselves. See the review evidence ↓
Hyper Backup and snapshots cover everyday backup needs. Keep a separate backup copy as well as any drive redundancy.[1]
Large-file tests approached the 1GbE connection limit. Backups containing many small files were noticeably slower.[2][3]
Photos and facial recognition are listed, but memory is fixed at 1 GB and the selected reviews do not measure large-library indexing time.[1]
There is no RAM upgrade, M.2 slot or expansion-unit support. Buy for a defined workload rather than assuming you can expand later.[1]
Follow any specification for its full conditions and sources.
Living with it
TweakTown measured 112 MB/s reads and 118 MB/s writes using HAT3300 drives in SHR. PC-WELT recorded about 109 MB/s for a UHD video, but 35.87 MB/s for a 2 GB backup containing 4,195 files. Both used Gigabit networking; PC-WELT did not name its drives.[2][3]
Our buying advice combines official specifications with the original reviews below. We have not tested this product ourselves. Expand a review for its setup, measurements and limitations.
Tyler BernathAug 23, 2023
Two 4 TB HAT3300 drives in SHR delivered112.78/118.06 MB/s read/write in CrystalDiskMark 7, three passes1 GiB. Client and exact DSM build are unspecified; separate iSCSI tests have different cache and workload conditions.
Read the original reviewSynology DiskStation DS223j 2-Bay Home NAS Review
Tested: Two HAT3300-4T4 TB HDDs, SHR, 1 GB DS223j, 1GbE; CDM7.0x64 three passes1 GiB mapped drive; separate1 TB iSCSI IOMeter volume. Article saysDSM7.1; exact build/client unspecified.
Applies to: Useful for basic Gigabit file serving; not a modern multi-app stress test.
| Measurement | Result | Conditions & source location |
|---|---|---|
| CDM sequential Q8T1 / Q1T1 read-write | 112.78/118.06;114.25/114.01 MB/s | Three passes1 GiB; mapped network driveCDM chart |
| CDM4K Q32T1 / Q1T1 read-write | 66.86/20.85;5.15/3.29 MB/s | Same configurationCDM chart |
| IOMeter128K sequential | Approaches120 MB/s byQD4 | Separate1 TB iSCSI volume; cache details unknownIOMeter sequential chart |
| IOMeter4K read | Approximately27000 IOPS atQD32+ | Cache and working set unspecified; not proof of physical HDD random speedIOMeter4K chart |
Limits to keep in mind
Ines Walke-ChomjakovAug 3, 2024
PC-WELT measured 109.07 MB/s writes and 109.03 MB/s reads for a UHD file, versus 35.87 MB/s writing 4,195 small files totaling 2 GB. Both used SHR and 1GbE on DSM 7.2.1; the HDD model was not disclosed.
Read the original reviewSynology Diskstation DS223j im Test: Günstiges Einstiegs-NAS
Tested: DS223j, 1 GB; SHR mirrored array; DSM 7.2.1-69057 Update 5; 1GbE. Article does not identify HDD MPN/capacity.
Applies to: Direct large-file versus many-small-file comparison and installation observations; drive-specific power conclusions limited.
| Measurement | Result | Conditions & source location |
|---|---|---|
| UHD file write / read | 109.07 / 109.03 MB/s | Tears of Steel UHD copy; SHR; DSM 7.2.1-69057 Update 5; 1GbE; HDD model unspecified.Test-Ergebnisse: UHD-Film schreiben / lesen |
| Small-file backup write | 35.87 MB/s | 2 GB backup containing 4,195 small files; same configuration.Test-Ergebnisse: Backup schreiben |
| Concurrent UHD copy and backup write | 72.89 MB/s | Concurrent workload as reported; not per-user guaranteed speed.Test-Ergebnisse: UHD-Film kopieren und Backup schreiben |
| NAS Performance Tester100MB write / read | 116.76 /118.19 MB/s | SHR; unknown drivesResults table |
| 400MB /8000MB write-read | 117.98/118.31;118.18/115.19 MB/s | Same configurationResults table |
| Power idle / sleep / load / off | 16.4 /3.1 /22.3 /0.1 W | Drive model and meter unspecifiedResults table |
Limits to keep in mind
Mark PickavanceOct 18, 2023
Tech Advisor confirmed soldered 1 GB RAM and the need for a separate 2.5-inch drive holder. Its DSM 7.2 trial used SATA SSDs with warnings, without a disclosed drive/RAID setup or numeric benchmark. Package observations are version-specific.
Read the original reviewSynology DiskStation DS223j review
Tested: DS223j 1 GB, DSM 7.2; hands-on enclosure inspection and SATA SSD use; exact disks/RAID not disclosed.
Applies to: Installation, soldered RAM and historical application experience only.
Limits to keep in mind
Ethan BeelerJul 6, 2023
Two 22 TB WD Red Pro HDDs in RAID 1 were tested on DSM 7.1.1 with ext4. Sequential transfers approached115 MB/s; the high-queue-depth random tests are reported separately. Chart labels resolve the article’s RAID 6/QNAP template errors.
Read the original reviewStorageReview Synology DS223j RAID 1 sequential test
Tested: Two 22 TB WD Red Pro HDDs RAID 1;1 GB; screenshot DSM 7.1.1-42962 Update6, ext4;1GbE. Synthetic16 threads×QD 16 using four 25 GB shared files and four 25 GB iSCSI LUNs.
Applies to: Exact model historical ext4 synthetic workload; current Btrfs capabilities are established separately by official documents.
| Measurement | Result | Conditions & source location |
|---|---|---|
| 4K throughput SMB /iSCSI read-write | 162/717;495/689 IOPS | 16T16Q; RAID 14K chart |
| 4K average latency SMB /iSCSI read-write | 1570.90/356.49;533.58/371.15 ms | 16T16Q4K chart |
| 4K maximum latency SMB /iSCSI read-write | 3132/1134;101764/2852.6 ms | 16T16Q4K chart |
| 4K standard deviation SMB /iSCSI read-write | 79.58/121.43;2119.52/282.05 ms | Chart values supersede small prose discrepancies4K chart |
| 8K sequential SMB /iSCSI read-write | 10427/7896;14283/14231 IOPS | Synthetic sequential8K chart |
| 8K70/30 throughput endpoints SMB /iSCSI | 215–216;602–791 IOPS | 2T2Q through 16T16Q8K mixed chart |
| 8K70/30 average latency endpoints SMB /iSCSI | 18.52–1180;6.62–323 ms | Mixed workload8K mixed chart |
| 8K70/30 maximum latency endpoints SMB /iSCSI | 115–2384;2437–9943 ms | Mixed workload8K mixed chart |
| 8K70/30 deviation endpoints SMB /iSCSI | 7.36–95;24.5–578 ms | Mixed workload8K mixed chart |
| 128K sequential SMB /iSCSI read-write | 115068/115436;115242/115416 KB/s | Preserved chart units;1GbE128K chart |
Limits to keep in mind
Examples ordered by recorded drive unit price, which may be historical or an editorial reference. Check capacity, vendor compatibility, included storage and price evidence before choosing. These are component checks, not compatibility certifications.
Component total: $519.97 · historical · Oldest price record: 2026-10-09T01:23:41.974420+00:00 · 4TB raw, before redundancy.
Historical price estimate. Calculated from separately purchased components, not a complete-system offer. NAS price record: 2026-10-09T03:59:05.715621+00:00; drive price record: 2026-10-09T01:23:41.974420+00:00. Price observed at the store on the shown date. Confirm the current price and availability at the store. Historical price observation. Recheck the price and availability before buying; this is not a current offer. Recheck component prices, stock, shipping and tax at the stores before purchase; even recent checks do not guarantee live prices.
Component total: $589.97 · recent · Oldest price record: 2026-10-09T03:58:24.994342+00:00 · 8TB raw, before redundancy.
Dated price estimate. Calculated from separately purchased components, not a complete-system offer. NAS price record: 2026-10-09T03:59:05.715621+00:00; drive price record: 2026-10-09T03:58:24.994342+00:00. Price observed at the store on the shown date. Confirm the current price and availability at the store. Price observed at the store on the shown date. Confirm the current price and availability at the store. Recheck component prices, stock, shipping and tax at the stores before purchase; even recent checks do not guarantee live prices.
Component total: $599.97 · historical · Oldest price record: 2026-09-27T13:58:17.239646+00:00 · 8TB raw, before redundancy.
Historical price estimate. Calculated from separately purchased components, not a complete-system offer. NAS price record: 2026-10-09T03:59:05.715621+00:00; drive price record: 2026-09-27T13:58:17.239646+00:00. Price observed at the store on the shown date. Confirm the current price and availability at the store. Historical price observation. Recheck the price and availability before buying; this is not a current offer. Recheck component prices, stock, shipping and tax at the stores before purchase; even recent checks do not guarantee live prices.
Before you buy
This is an empty enclosure. Budget for SATA storage and a separate destination for important backups.[1]
A 2.5-inch SATA drive needs the optional Type C holder. Check the current drive compatibility list before purchase.[1]
The supplied 1 GB is fixed. If your planned applications need more memory, include the cost of choosing a different enclosure rather than a future RAM module.[1]
The full specifications retain manufacturer test conditions. Some application limits use maximum supported RAM or SSD volumes; extra RAM, SSDs and licenses can add to the enclosure cost.[7]
Diskless enclosure with fixed 1 GB RAM. Storage drives are purchased separately. Check the total delivered price at the store.
Lowest observed price
$209.99
In stock at observation
Currency not confirmed
5 stores · 1 recent price observation
Sold by Amazon.com
$209.99
Observed price
Currency not confirmed
In stock at observation · Condition not recorded
Observed Oct 9, 2026, 3:59:05 AM UTC[14]
View exact product at AmazonSeller not recorded
$209.99
Historical price
Currency not confirmed
Stock not confirmed · Condition not recorded
Observed Sep 27, 2026, 5:25:29 AM UTC[11]
View exact product at B&H Photo VideoSold by Newegg
$209.99
Historical price
Stock not confirmed · New
DS223j; factory configuration; diskless enclosure
Observed shipping: $0.99
Observed Oct 9, 2026, 1:18:25 AM UTC[12]
View exact product at NeweggSold by Tech Deal
$209.99
Historical price
Currency not confirmed
Stock not confirmed · Condition not recorded
Observed Sep 26, 2026, 8:18:07 AM UTC[13]
View exact product at Best BuySeller not recorded
$214.99
Historical price
Currency not confirmed
Stock not confirmed · Condition not recorded
Observed Sep 27, 2026, 4:12:10 AM UTC[15]
View exact product at AdoramaPrices are dated observations. Confirm the model, seller, condition, stock and delivered total at the store. Older prices remain visible as history. Links may earn a commission.
The RAM is fixed at 1 GB and the built-in connection is 1GbE. No official memory or network expansion option is specified.[1][4]
The current specification lists 2.5-inch SATA SSDs, but installing them requires the optional Type C holder. There are no M.2 slots; consult the current compatibility list before buying.[1]
Photos and facial recognition are listed, but no verified indexing-time test for a large photo library was found in the selected reviews. Use the fixed 1 GB RAM as a reason to keep expectations modest; object recognition is not listed.[1]
A 2023 hands-on review reported Container Manager under DSM 7.2. Package availability is version-dependent and its current model list did not render reliably during this check. We do not describe it as either universally unsupported or a tested multi-container server.[4]
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.
Checked Sep 11, 2026 · Hardware + DSM tables, last updated Aug 6, 2026
Checked Sep 11, 2026 · Wayback; CDM 112/118 MB/s HAT3300 SHR
Checked Sep 11, 2026 · UHD 109 MB/s; small-file 35.87 MB/s
Checked Sep 11, 2026 · Soldered RAM; 2.5-inch holder
Checked Sep 8, 2026 · MFR number, factory RAM, main new-product buy box, In Stock, price and shipping
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
Checked Sep 11, 2026 · Same current US product page
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.
Checked Sep 11, 2026 · Exact-model title, specification table, buybox price/seller and Add to cart; parent captured source
Checked Sep 11, 2026 · 2x 22 TB WD Red Pro RAID 1; 128k 115 MB/s SMB and iSCSI
Checked Sep 27, 2026 · Captured observation; sha256:f0af2aa03d799a15580009eb27e2e14efc753c761ee0cc3ecbb259921e0e8f95
Checked Oct 9, 2026 · newegg-main-item; sha256:85fc2c627a9195f96965231cb31a769644a49faec94888dfc4988b914a9f08a2
Checked Sep 26, 2026 · Captured observation; sha256:4fca681503a79513d8a3003be4105dcada8324c929ff09c155bc798444413bf9
Checked Oct 9, 2026 · Captured observation; sha256:8a4d4f7fe4bfb143c0a57a3ec1afeeff7922b3ed1e0a7396a36c103e71a3280e
Checked Sep 27, 2026 · Captured observation; sha256:34dd1367c4ce0c99c4e7aa65a775f0c17cfa65f612761604111dbf146caa95f6
Independent review completed for the scope recorded in the audit.
Source evidence and review history (JSON)