Silicon Power UD90 500Gb SSD detailed specs

Posted on November 13, 2022 by Raymond Chen

Silicon Power's UD90 SSD use PCIe M.2 4.0 x 4. Read below about this NVMe here.

Silicon Power UD90 500Gb SSD detailed specs

UD90 (500Gb) produced by Silicon Power works on Phison E21T. The UD90 comes equipped with Micron TLC flash memory. SSD besides, available in 1 Tb and 250 Gb capacities.

Performance and benchmarks

Internal SSD works on PCIe M.2 4.0 x 4 computer expansion bus standard with write speeds 4200 Mbps, and maximum read speeds 4800 MB/s. UD90 has IOPS 739000 on writing and 739000 on reading operations per second.

Endurance and warranty

Manufacturer provide 5 years of warranty limited by endurance 600 Total Bytes Written.


Category Value
Capacity 500 Gb
Interface M.2 4.0 x 4
Controller Phison E21T
Memory type Micron TLC
DRAM n/a
Read speed (Mb/s) 4800
Write speed (Mb/s) 4200
Read IOPS 739000
Write IOPS 739000
Endurance (TBW) 600
MTBF (million hours) n/a
Warranty (years) 5


Silicon Power UD90 500Gb use PCIe 4 that is undoubtedly faster than PCIe Gen3. The maximum write speed is 4200 Mbps, that is common for this computer expansion bus standard. The Silicon Power UD90 can write 600 TBW, that is pretty well in comparison with nearest rivals. Overall, our editor strongly recommend to buy Silicon Power UD90 500Gb for your PC.

+ Pros

  • Good writing speed
  • PCIe 4.0
  • Endurance

- Cons

  • Capacity

Buy this or similar SSD:

Video Review

Silicon Power UD90 - Much Faster Than What They Wrote!


The Silicon Power UD90 is DRAMless SSD or information about it is unknown. DRAM in their controller help to improve endurance and IOPS.

The UD90 500Gb due to the low density of memory chips can last with no additional heat sinks. Some motherboards already has thermal pads below or above the storage for better performance during high loads.

The Silicon Power UD90 500Gb has maximum write speed 4200 Mbps, read speed 4800 Mbps. NVMe run on Phison E21T controller and M.2 4.0 x 4 interface standard. The NAND memory type is Micron TLC.
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