Silicon Power UD90 250Gb SSD technical specs

Posted on December 19, 2022 by Raymond Chen

Should you buy Silicon Power UD90 250Gb and another characteristics watch in our article.

Silicon Power UD90 250Gb SSD technical specs

Silicon Power's 250Gb UD90 NVMe SSD use Phison E21T controller. The UD90 comes equipped with Micron TLC flash memory. Internal SSD is offered also in 1 Tb and 500 Gb capacities.

Performance and benchmarks

Drive works on PCIe M.2 4.0 x 4 expansion standard with sequential write speeds equals to 4200 Mbps, and read speeds 4800 MB/s. This model has IOPS 739000 on reading and 739000 on writing operations.

Endurance and warranty

Manufacturer give 5 years warranty that limited by 600 Total Bytes Written.


Category Value
Capacity 250 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 250Gb use PCIe Gen4 that is twice faster than previous bus standard. The write speed is 4200 Mb/s, that is common for this expansion standard. The drive provide possibility to write 600 TBW, that is awesome in comparison with rivals. After evaluating all the facts, our editor strongly advise to purchase Silicon Power UD90 250Gb for your PC.

+ Pros

  • Good writing speed
  • PCIe 4.0
  • Endurance

- Cons

  • Capacity

Buy this or similar SSD:

Video Review

Which SSD is BEST? - Silicon Power SSD's Benchmarked and Reviewed


The Silicon Power UD90 is DRAMless drive or data about it is unknown. DRAM in their controller help to increase endurance and input/output performance.

The UD90 250Gb due to the low density of memory chips may function with no further cooling systems. Some laptops or motherboards already has additional cooling above or below the drive for improving performance during heavy loads.

The UD90 250Gb has maximum write speed 4200 Mb per second, sequential read speed 4800 Mb/s. SSD operate on Phison E21T controller and M.2 4.0 x 4 interface standard. The memory type is Micron TLC.
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