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Thin green M.2 2280 SSD with black label, 80mm long

Silicon Power

Silicon Power UD90 4TB internal SSD

SKU CH-SPC9-C6W2N

4TB M.2 2280 internal SSD using PCIe 4.0 with sequential reads up to 5000 MB/s and writes up to 4500 MB/s

  • Total capacity4 TB
  • Sequential read speedUp to 5,000 MB/s
  • Sequential write speedUp to 4,500 MB/s
  • Interface typePCI-Express 4.0
  • Form factorM.2 2280
  • Product typeInternal Solid State Drive (SSD)

Capacity 4TB

  • PCIe 4.0 interface delivers up to 5000 MB/s read speeds
  • Sequential writes reach 4500 MB/s for large file transfers
  • 4 TB capacity stores extensive media libraries and projects
  • 3D NAND with SLC caching sustains performance under heavy workloads
  • M.2 2280 form factor fits standard desktop and laptop slots

PCIe 4.0 NVMe SSD for creators

The Silicon Power UD90 is a 4TB M.2 2280 internal solid state drive built for consumer workloads that demand high sequential throughput. It connects through a PCIe 4.0 interface and delivers up to 5000 MBps read and 4500 MBps write speeds. The 3D NAND architecture supports sustained multi-tasking across creative applications.

SLC cache and LDPC protect data flow

On-board SLC caching boosts burst performance while low density parity check coding corrects transmission errors in real time. End-to-end data protection and RAID support add further integrity layers for critical project files. Host Memory Buffer technology reduces latency by using system DRAM for mapping tables.

Simple M.2 installation with thermal awareness

The single-sided 3.50 mm module fits standard M.2 slots without heatsink clearance issues. Motherboard standoffs at 80.0 mm depth secure the 8 g drive in seconds. Ensure the BIOS recognises PCIe 4.0 and NVMe 1.4 to unlock full bandwidth; older chipsets may limit speeds to PCIe 3.0 levels.

How it compares

Measured against everything we stock in Internal NVMe & SATA SSDs, at today’s prices. Recalculated every night.

Price $392.99
Pricier than about 75% of the 1,994 comparable items (median $180.49).
Total capacity 4 TB
Higher than about 90% of the 1,368 comparable items (median 1 TB).
Sequential read speed Up to 5,000 MB/s
Higher than about 70% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $98.25 per TB
Cheaper than about 86% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameSilicon Power
Product lineUD90
Part numberSU04KGBP44UD9005SN
Total capacity4 TB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 5,000 MB/s
Sequential write speedUp to 4,500 MB/s
Storage
NAND flash type3D NAND
Ports & slots
Interface typePCI-Express 4.0
Size & build
Form factorM.2 2280
Overall height3.5 mm
Overall width22 mm
Product depth80.0 mm
Product weight8g
Environment & compliance
Operating temperature range0 °C to 70 °C
Max shock tolerance1500g/0.5 ms
More details
Mean time between failures1,500,000 h

Other versions of this model

2 more in the same range

Questions about this item

How long before the 4TB UD90 needs replacement based on its reliability rating?

The drive carries a 1,500,000-hour MTBF rating, indicating a very long expected service life under normal workloads before a replacement would be statistically likely.

What limits sustained write performance on the UD90 during heavy use?

Sequential write speeds reach up to 4500 MB/s; once the SLC cache fills during large continuous transfers, write throughput will drop to the native 3D NAND speed.

How hot does the M.2 2280 UD90 get when running all day at PCIe 4.0 speeds?

It is rated to operate between 0°C and 70°C; under sustained PCIe 4.0 loads the controller will throttle to stay within this thermal envelope.

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