PC parts / SSDs
Silicon PowerSSD
UD90
Released July 2022.4Press releasesp-siliconpower.com/blogs/news/the-new-ud90-pcie-4-0-ssd-fuels-the-speed-to-succeedRead 14 October 2026The release announces 250GB, 500GB and 1TB and gives no price. Tom's Hardware reviewed the 1TB on 18 July 2022 and said Silicon Power intended to launch with only the 1TB in the US. The first retail month is taken as 2022-07, which is two months after the announcement Last checked 16 October 2026.
- Interface
- PCIe NVMe
- Form factor
- M.2 2280
- Capacity
- 250 GB, 500 GB, 1 TB, 2 TB, 4 TB
- Read speed
- 5,000MB/s
26 of 63 fields known.
General
- Series
- Not available
- Model numbers
- SP250GBP44UD9005, SP500GBP44UD9005, SP500GBP44UD9005AY, SP01KGBP44UD9005, SP01KGBP44UD9005AY, SU01KGBP44UD9005SN, SP02KGBP44UD9005, SP02KGBP44UD9005AY, SP04KGBP44UD9005, SP04KGBP44UD9005AY1Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026The P/N table lists SP250GBP44UD9005, SP500GBP44UD9005 and its AY twin, SP01KGBP44UD9005 with its AY and SN twins, SP02KGBP44UD9005 and its AY twin, and SP04KGBP44UD9005 with its AY twin. Silicon Power does not say what AY and SN mean9Spec databasebuildcores.com/products/Storage/zdilema3v/Silicon-Power-UD90-2TB-SSD-M.2-2280-PCIe-4.0-x4-NVMeRead 14 October 2026Lists SP02KGBP44UD9005, SP02KGBP44UD9005AY and SU02KGBP44UD9005SN. The SN part is not on the Silicon Power page and is not stored
- GTIN / EAN
- 4713436149507, 8865760676129Spec databasebuildcores.com/products/Storage/zdilema3v/Silicon-Power-UD90-2TB-SSD-M.2-2280-PCIe-4.0-x4-NVMeRead 14 October 20262TB listing: UPC 886576067612 and EAN 4713436149507
- Announced
- 20 May 20224Press releasesp-siliconpower.com/blogs/news/the-new-ud90-pcie-4-0-ssd-fuels-the-speed-to-succeedRead 14 October 2026Silicon Power's launch release is datelined Taipei, May 20st, 2022 (sic). This copy is a Silicon Power US blog post republished in 20235Press articlefunkykit.com/news/silicon-power-announces-ud90-pcie-4-0-ssdRead 14 October 2026Funky Kit reposted the release on 20 May 2022
- Predecessor
- Not available
- Successor
- Not available
- Launch price (US)
- From $94.991Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 20263Maker spec sheet (PDF)silicon-power.com/document/ssd_tbwRead 14 October 20266Reviewtomshardware.com/reviews/silicon-power-ud90-ssd-reviewRead 14 October 20267Reviewpcper.com/2023/02/silicon-power-pcie-gen-4x4-ud90-1tb-nvme-ssd-review-excellent-valueRead 14 October 20268Reviewservethehome.com/silicon-power-ud90-4tb-nvme-ssd-reviewRead 14 October 20269Spec databasebuildcores.com/products/Storage/zdilema3v/Silicon-Power-UD90-2TB-SSD-M.2-2280-PCIe-4.0-x4-NVMeRead 14 October 2026
- Launch price (EU)
- Not available
- Markets
- Not available
- Colours
- Not available
- Form factor
- M.2 22801Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026Feature list reads M.2 2280 (80mm)
- Capacity
- 250 GB, 500 GB, 1 TB, 2 TB, 4 TB1Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026Capacity row reads 250GB, 500GB, 1TB, 2TB, 4TB2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280Read 14 October 2026Capacity: 250GB, 500GB, 1TB, 2TB, 4TB
Interface
- Interface
- PCIe NVMe1Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026Interface row reads PCIe Gen4 x42Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280Read 14 October 2026Interface: PCIe Gen4 x4
- PCIe generation
- 41Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026PCIe Gen4 x4
- NVMe version
- 1.41Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026Supports NVMe 1.42Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280Read 14 October 2026Gen4 x4 and NVMe 1.48Reviewservethehome.com/silicon-power-ud90-4tb-nvme-ssd-reviewRead 14 October 2026CrystalDiskInfo confirms PCIe 4.0 x4 and NVMe 1.4
- Detachable cable
- Not available
Hardware
- Controller
- Phison E21T6Reviewtomshardware.com/reviews/silicon-power-ud90-ssd-reviewRead 14 October 2026Phison E21T, the first drive Tom's tested with it. Four channels and DRAM-less7Reviewpcper.com/2023/02/silicon-power-pcie-gen-4x4-ud90-1tb-nvme-ssd-review-excellent-valueRead 14 October 2026Phison E21 (PS5021-E21T) controller, DRAM-less8Reviewservethehome.com/silicon-power-ud90-4tb-nvme-ssd-reviewRead 14 October 2026Phison PS5021-E21T
- Flash type
- Not available
- Flash memory
- Not available
- Flash layers
- Not available
- DRAM cache
- None, uses host memory (HMB)1Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026Supports Host Memory Buffer (HMB). The maker does not say there is no DRAM chip. Reviewers found none2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280Read 14 October 2026Supports NVMe 1.4 and Host Memory Buffer (HMB)6Reviewtomshardware.com/reviews/silicon-power-ud90-ssd-reviewRead 14 October 2026Spec table reads No (HMB). No DRAM on the board
- DRAM cache size
- Not available
- Component sides
- Not available
Performance
- Sequential read (claimed)
- 5,000MB/s1Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026Performance Read (max.): 250GB 4,700 MB/s and 5,000 MB/s for 500GB, 1TB, 2TB and 4TB. Footnote: performance varies by system and capacity. No test host is named2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280Read 14 October 2026Up to 5000MB/s. Per-capacity values are on the product page
- Sequential write (claimed)
- 4,800MB/s1Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026Performance Write (max.): 250GB 1,500, 500GB 2,700, 1TB 4,800, 2TB 4,800 and 4TB 4,500 MB/s. The 2022 launch figures were 4,800 read and 4,200 write for the 1TB and 250GB write was 1,950 in 2023. Today's page is stored2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280Read 14 October 2026Up to 4800MB/s. Footnote: read and write vary by system performance and capacity
- Random 4K read (claimed)
- Not available
- Random 4K write (claimed)
- Not available
Endurance and reliability
Power
We could not find any of these 6 fields. Show them
- Power while reading (claimed)
- Not available
- Power while writing (claimed)
- Not available
- Max power consumption (claimed)
- Not available
- Average power in light use (claimed)
- Not available
- Idle power (claimed)
- Not available
- Sleep power (claimed)
- Not available
Measured
We could not find any of these 9 fields. Show them
- Sequential read (measured)
- Not available
- Sequential write (measured)
- Not available
- Random 4K read at queue depth 1 (measured)
- Not available
- Random 4K write at queue depth 1 (measured)
- Not available
- Write cache size (measured)
- Not available
- Write speed after the cache (measured)
- Not available
- 3DMark Storage Benchmark
- Not available
- Highest temperature under load (measured)
- Not available
- Idle power (measured)
- Not available
Cooling and build
- Heatsink
- Without heatsink1Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026The page shows a bare M.2 drive and lists no heatsink version
- RGB lighting
- Not available
- Dust and water rating
- Not available
- Drop test height
- Not available
Security and software
- Security
- Not available
Compatibility
Dimensions and weight
Front and side, drawn to scale.
- Dimensions
- Length80Width22Height3.5mm(3.1 × 0.9 × 0.1 in)1Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 202622.0mm x 80.0mm x 3.5mm. Stored as length 80, width 22 and height 3.52Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280Read 14 October 202622.0mm x 80.0mm x 3.5mm
In the box
We could not find any of these 2 fields. Show them
- In the box
- Not available
- Cables included
- Not available
Links
- Product page
- www.silicon-power.com/product-detail/PCIe-Gen4-x4-UD90-22801Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026Silicon Power global page for the 2280 drive. The UD90 is also sold as a 2230 drive, which is a separate product
- Spec sheet
- www.silicon-power.com/download-detail/edm-ud90-22802Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280Read 14 October 2026SP UD90 2280 datasheet, e-DM issued on Jul. 7, 2026, one page
- Manual
- Not available
- EPREL registration number
- Not available
Warranty
- Manufacturer warranty (source market)
- 5years1Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 20265-year limited warranty. The warranty is based on the TBW or the warranty period. Market not named2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280Read 14 October 20265-year limited warranty
Compare with
Pick a SSD to see both side by side. Differences are marked yellow.
Variants
Each variant lists only what differs from the specs above.
| Model number | GTIN | Model numbers | GTIN / EAN | Launch price (US) | Capacity | Flash type | Flash memory | Flash layers | Component sides | Sequential read (claimed) | Sequential write (claimed) | Endurance (TBW) | Sequential read (measured) | Sequential write (measured) | Random 4K read at queue depth 1 (measured) | Random 4K write at queue depth 1 (measured) | Write cache size (measured) | Write speed after the cache (measured) | Idle power (measured) | Heatsink |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SP250GBP44UD9005 | Not available | Not available | Not available | Not available | 250 GB | Not available | Not available | Not available | Not available | 4,700 MB/s | 1,500 MB/s | 75 TB | Not available | Not available | Not available | Not available | Not available | Not available | Not available | Without heatsink |
| SP500GBP44UD9005 | Not available | SP500GBP44UD9005, SP500GBP44UD9005AY | Not available | Not available | 500 GB | Not available | Not available | Not available | Not available | 5,000 MB/s | 2,700 MB/s | 150 TB | Not available | Not available | Not available | Not available | Not available | Not available | Not available | Without heatsink |
| SP01KGBP44UD9005 | Not available | SP01KGBP44UD9005, SP01KGBP44UD9005AY, SU01KGBP44UD9005SN | Not available | $94.99 | 1 TB | TLC | Micron 176-layer TLC (B47R) | 176 | Single-sided | 5,000 MB/s | 4,800 MB/s | 300 TB | 5,061 MB/s | 4,643 MB/s | 87.23 MB/s | 397.62 MB/s | 69 GB | 1,800 MB/s | 985 mW | Without heatsink |
| SP02KGBP44UD9005 | 4713436149507 | SP02KGBP44UD9005, SP02KGBP44UD9005AY | 4713436149507, 886576067612 | Not available | 2 TB | Not available | Not available | Not available | Not available | 5,000 MB/s | 4,800 MB/s | 600 TB | Not available | Not available | Not available | Not available | Not available | Not available | Not available | Without heatsink |
| SP04KGBP44UD9005 | Not available | SP04KGBP44UD9005, SP04KGBP44UD9005AY | Not available | Not available | 4 TB | QLC | Micron 176-layer QLC | 176 | Single-sided | 5,000 MB/s | 4,500 MB/s | 1,200 TB | Not available | Not available | Not available | Not available | Not available | Not available | Not available | Without heatsink |
Sources
We read 9 sources for this SSD. The numbers match the markers in the sheet.
- Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280
- Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280
- Maker spec sheet (PDF)silicon-power.com/document/ssd_tbw
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