UGREEN · NAS buying guide
UGREEN NASync DXP480T Plus · Exact identity: 25891
4 primary bays · Intel Core i5-1235U · 8GB DDR5 · 1 × 10GbE · Diskless: hard drives cost extra
Catalog amount: $899.99 · historical · Price record: 2026-09-27T15:11:06.158884+00:00. Tax and shipping excluded.
Historical price observation. Recheck the price and availability before buying; this is not a current offer.
NASync DXP480T Plus: specifications and dated store comparison →Compact all-flash storage over 10GbE or Thunderbolt networking
Diskless DXP480T Plus / SKU 25891 · 8GB DDR5 (max 64GB) · 4× M.2 2280 · 1× 10GbE + 2× TB4
ChooseCompute has not tested this NAS. The buying judgment below combines exact-model manufacturer documentation with independently reviewed original tests; each result retains its configuration and software date. See the review evidence ↓
Four NVMe slots and two connection methods can serve large projects, but slot speeds and client paths differ.[1][6]
Liliputing measured loud fans during CPU stress; room, distance and workload matter.[6]
Only M.2 data drives fit; compare the total SSD capacity cost with an HDD enclosure.[1]
Follow any specification for its full conditions and sources.
Living with it
DXP480T Plus offers four M.2 data slots, Core i5-1235U, 10GbE and two Thunderbolt 4 ports. It suits compact fast storage when SSD cost is acceptable. Slots are not equally fast, and small fans can become loud under load; plan around your actual client connection and sustained workload.[1]
StorageReview’s four 1TB Samsung 980 Pro drives in RAID 5 reached 1128038 KB/s read and 931322 KB/s write in its sequential chart. Its saturated 4K test also recorded a 16.589-second maximum write latency on prelaunch UGOS 1.0.0.0556.[5]
Liliputing copied 100GB to a NUC 13 Extreme at NAS read/write rates of 1.51/1.42 GB/s over Thunderbolt IP networking, versus 1.09/1.15 GB/s over Ethernet. This is not USB mass-storage mode or a promise of 40Gb/s file copies.[6]
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.
Jan 6, 2025
Mac transfers were fast and quiet, and the compact all-flash chassis had a useful port selection. Network write / read: 596 / 741 MB/s. M1 Max Mac Studio over a 10GbE switch.
Read the original reviewMacworld NASync DXP480T Plus original test
Tested: M1 Max Mac Studio and Zyxel XGS1250-12 switch on 10GbE; exact SSD MPN, RAID, UGOS build, benchmark app and file size unstated.
Applies to: Applies to NASync DXP480T Plus; factory memory, drives, RAID, network and software conditions remain limited to the disclosed setup.
| Measurement | Result | Conditions & source location |
|---|---|---|
| Network write / read | 596 / 741 MB/s | M1 Max Mac Studio over a 10GbE switch.Macworld transfer-performance section |
Limits to keep in mind
Harish Jonnalagadda
The beta-era unit copied between 10GbE servers at over 540 MB/s write and 700 MB/s read. Plex was explicitly not tested; CPU capability is not a measured transcoding result. 10GbE server copies write/read: >540 MB/s / 700 MB/s. Moving data between servers on 10GbE.
Read the original reviewUGREEN DXP480T Plus review: This Thunderbolt 4-enabled all-flash NAS server is magnificent
Tested: DXP480T Plus on a 10GbE network. Software described as still in beta in the opened article (date not in JSON-LD).
Applies to: Exact DXP480T Plus. 540/700 MB/s is the author’s 10GbE server-to-server copy, not a four-client lab.
| Measurement | Result | Conditions & source location |
|---|---|---|
| 10GbE server copies write/read | >540 MB/s / 700 MB/s | Moving data between servers on 10GbE.Performance |
Limits to keep in mind
Lyle SmithApr 24, 2024
Sequential throughput was high, but the saturated 4K write workload showed a 16.589-second maximum latency. All-flash hardware did not eliminate long write-tail delays in this prelaunch test. 4K random read / write: 7084 / 7927 IOPS. 16 threads ×16 queue, steady-state CIFS
Read the original reviewUGREEN DXP480T Plus SSD NAS Review
Tested: Four vendor-supplied Samsung 980 Pro 1TB M.2 SSDs in RAID 5. Compared in the same article to DXP6800 Pro with six 4TB WD Red Plus HDDs in RAID 6 — that HDD box is RELATED, not this SKU. UGOS 1.0.0.0556 shown in the April 23, 2024 system image; CIFS testing.
Applies to: Exact DXP480T Plus for the RAID 5 NVMe numbers. DXP6800 Pro HDD figures are related only.
| Measurement | Result | Conditions & source location |
|---|---|---|
| 4K random read / write | 7084 / 7927 IOPS | 16 threads ×16 queue, steady-state CIFSOriginal benchmark charts |
| 4K average latency read / write | 36.13 / 32.52 ms | Same saturated random workloadOriginal benchmark charts |
| 4K maximum latency read / write | 566 / 16589 ms | Long-tail delay; RAID 5 confirmed in all charts; one prose paragraph incorrectly says RAID 6Original benchmark charts |
| 4K latency standard deviation read / write | 8.68 / 343.06 ms | Same workload; chart-rounded write valueOriginal benchmark charts |
| 8K sequential read / write | 85519 / 56673 IOPS | 16 threads ×16 queueOriginal benchmark charts |
| 8K 70/30 mixed throughput | 7961–10045 IOPS | 2T/2Q through 16T/16Q; reported rangeOriginal benchmark charts |
| 8K 70/30 mixed average latency | 0.5–25.47 ms | Increasing thread/queue loadOriginal benchmark charts |
| 8K 70/30 mixed maximum latency | 419.86–598.35 ms | Reported rangeOriginal benchmark charts |
| 8K 70/30 mixed latency deviation | 1.11–7.46 ms | Reported rangeOriginal benchmark charts |
| 128K sequential read / write | 1128038 / 931322 KB/s | Original chart units retained; single 10GbE, four Samsung 980 Pro 1TB RAID 5Original benchmark charts |
Limits to keep in mind
Ian W Morrison (Linuxium)Sep 10, 2024
Thunderbolt results used IP networking, not the Ethernet port or a USB mass-storage mode. The NUC read exceeded 10GbE because it used a separate Thunderbolt path; client-dependent iperf and disk results still disagreed. Ethernet 100GB file NAS read / write: 1.09 / 1.15 GB/s. NUC 13 Extreme; real transfer
Read the original reviewUGREEN NASync DXP480T Plus Review: A speedy NAS with 10 GbE and four M.2 slots
Tested: UGOS 1.0.0.1150; four Samsung NVMe SSDs, with 990 Pro 1TB confirmed in slots 1 and 3; separate RAID 0 ext4 pools in fast and slow slot pairs. NUC 13 Extreme for main Ethernet and Thunderbolt network copy tests.
Applies to: Exact DXP480T Plus. Unexplained >10GbE reads are not adopted as a 10GbE rating.
| Measurement | Result | Conditions & source location |
|---|---|---|
| Ethernet 100GB file NAS read / write | 1.09 / 1.15 GB/s | NUC 13 Extreme; real transferOriginal performance / power / noise section |
| Thunderbolt 100GB file NAS read / write | 1.51 / 1.42 GB/s | Same client; Thunderbolt IP network, not 10GbEOriginal performance / power / noise section |
| Ethernet CrystalDiskMark read / write | 1237.40 / 1231.64 MB/s | CDM 8.0.4; 5 passes, 1GiB, SEQ1M Q8T1Original performance / power / noise section |
| Thunderbolt NUC CrystalDiskMark read / write | 2135.73 / 1809.37 MB/s | CDM SEQ1M Q8T1; IP networking; different client results should not be generalizedOriginal performance / power / noise section |
| Local slot 1 / slot 3 sequential read | 7118.77 / 1784.30 MB/s | Windows local CDM 8.0.4, two passes, 1GiB SEQ1M Q8T1; not network throughputOriginal performance / power / noise section |
| Local slot 1 / slot 3 sequential write | 6736.87 / 1742.64 MB/s | Same local tests, Samsung 990 Pro 1TBOriginal performance / power / noise section |
| Outlet power | 1.4 W off; 9.4 W BIOS; 18 W UGOS idle; 20 W VM + Docker idle | UPS outlet meter, Ethernet attachedOriginal performance / power / noise section |
| File-transfer power | 42 W read; 55 W write | Populated review setupOriginal performance / power / noise section |
| CPU stress power | 82 W peak; 61 W average | CPU stress workload; not typical file-serving consumptionOriginal performance / power / noise section |
| Noise and heat | <30 dBA light load; 40→42 dBA copy; 56→49 dBA stress | Room 19.6°C; meter next to device, exact distance unspecified. CPU 69°C copy and 71°C stress; brief throttling.Original performance / power / noise section |
Limits to keep in mind
Cody ToombsDec 11, 2024
Small/light four-slot NVMe NAS aimed at jobs and travel, with a young OS and some oddities.
Read the original reviewUgreen NASync DXP480T Plus review: Nearly perfect for travel
Tested: Travel-oriented all-flash DXP480T Plus.
Applies to: Exact SKU qualitative fit for portable/all-flash use. Not a MB/s table.
Limits to keep in mind
This NAS does not support the 3.5-inch HDD catalog; no HDD combinations are generated.
Before you buy
The enclosure price excludes user drives. Include suitable drives, any memory upgrade, client networking and a separate backup target. Each merchant observation keeps its own verification date.[1]
Diskless DXP480T Plus / SKU 25891 · 8GB DDR5 (max 64GB) · 4× M.2 2280 · 1× 10GbE + 2× TB4 Check the total delivered price at the store.
Lowest observed price
$899.99
In stock at observation
2 stores · 1 recent price observation
Sold by UGREEN
$899.99
Observed price
In stock at observation · New
Observed Oct 16, 2026, 1:32:20 AM UTC[9]
View exact product at UGREENSold by UGREEN
$849.99
Historical price
Stock not confirmed · New
8GB DDR5; M.2 2280 NVMe SSD; user data drives not included
US shipping cost and destination eligibility not verified. Exact selected manufacturer variant; price before tax; data drives are separate unless the configuration states otherwise.
Observed Sep 11, 2026, 9:21:39 AM UTC[3]
View exact product at UGREENSold by Newegg
$899.99
Historical price
Currency not confirmed
Stock not confirmed · Condition not recorded
Observed Sep 27, 2026, 3:11:06 PM UTC[10]
View exact product at NeweggPrices 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.
StorageReview’s four 1TB Samsung 980 Pro drives in RAID 5 reached 1128038 KB/s read and 931322 KB/s write in its sequential chart. Its saturated 4K test also recorded a 16.589-second maximum write latency on prelaunch UGOS 1.0.0.0556.[5]
Liliputing copied 100GB to a NUC 13 Extreme at NAS read/write rates of 1.51/1.42 GB/s over Thunderbolt IP networking, versus 1.09/1.15 GB/s over Ethernet. This is not USB mass-storage mode or a promise of 40Gb/s file copies.[6]
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 · SKU 25891 table; $849.99; 2-Year Product Warranty
Checked Sep 11, 2026 · Thomas Bergbold 6 Jan 2025; DLNA; Docker; no Mac sync app
Checked Sep 11, 2026 · sku 25891 price 84999 available
Checked Sep 11, 2026 · Harish Jonnalagadda; 540 MB/s write / 700 MB/s read on 10GbE
Checked Sep 11, 2026 · Lyle Smith 24 Apr 2024; RAID5 four Samsung 980 Pro 1TB; 1.13 GB/s read / 931 MB/s write vs DXP6800 Pro HDD related
Checked Sep 11, 2026 · Ian W Morrison 10 Sep 2024; TB/10GbE sequential; idle ~18 W; affiliate
Checked Sep 11, 2026 · Cody Toombs 11 Dec 2024; travel/all-flash qualitative
Checked Sep 11, 2026 · Complete page and published table / FAQ; dynamic per-model results not loaded.
Checked Oct 16, 2026 · shopify-json-with-currency-evidence; sha256:8f1c419e6ea8918b41be5e7059a08738d370e2d2790a519ff3c425a131e32f4e
Checked Sep 27, 2026 · Captured observation; sha256:2b08aa4af205592d5a4148d0381b85f585dbe1a0a8fb0b1831d00f299bf5a6e6
Independent review completed for the scope recorded in the audit.
Source evidence and review history (JSON)