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Green printed circuit board with black controller and silver label, M.2 2280 stick form factor

Western Digital

Western Digital Blue SN550 WDS100T2B0C 1TB NVMe M.2 2280 internal SSD

SKU CH-QYQ6-EQM3Z MPN WDS100T2B0C

A 1 TB NVMe internal SSD with 2400 MBps read and 1950 MBps write speeds in M.2 2280 form factor

  • Total capacity1 TB
  • Sequential read speedUp to 2,400 MB/s
  • Sequential write speedUp to 1,950 MB/s
  • Interface typePCI-Express 3.0 x4
  • Form factorM.2 2280
  • Product typeInternal Solid State Drive (SSD)

Capacity 1TB

  • Boost system responsiveness with NVMe read speeds up to 2400 MB/s
  • Write large files quickly using sequential write performance up to 1950 MB/s
  • Handle heavy multitasking with random read IOPS up to 345000
  • Extend drive lifespan with 600 TBW endurance rating
  • Fit compact builds using single-sided M.2 2280 form factor

1TB NVMe M.2 2280 for consumers

The Western Digital Blue SN550 WDS100T2B0C is a 1TB internal solid state drive built for consumer PCs. It uses a single-sided M.2 2280 form factor with 3D NAND memory and a PCI-Express 3.0 x4 interface. The drive is designed to boost system responsiveness for everyday workloads. Its Western Digital controller and firmware are tuned for balanced performance and low power draw.

PCI-Express 3.0 x4 interface limits

This SSD connects through a PCI-Express 3.0 x4 link, which caps its maximum theoretical bandwidth. Sequential reads reach up to 2400 MBps and writes up to 1950 MBps within that ceiling. Random performance delivers up to 345000 IOPS for reads and 385000 IOPS for writes. The drive operates between 0°C and 70°C and idles at 30 mW in low-power state.

600TB endurance rating

The drive carries a terabytes written rating of 600TB, which is the single figure that determines whether it suits your write workload. A mean time to failure of 1.7M hours supports long-term reliability. Active power consumption peaks at 3.5W, while sleep state drops to 5 mW. These numbers define the practical service life for consumer use.

How it compares

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

Price $108.99
Cheaper than about 69% of the 1,994 comparable items (median $180.49).
Total capacity 1 TB
Typical for this category: the median of 1,368 items is 1 TB.
Sequential read speed Up to 2,400 MB/s
Typical for this category: the median of 1,180 items is 2,400 MB/s.
Price per TB $108.99 per TB
Cheaper than about 80% of the 1,362 comparable items (median $165.50 per TB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameWestern Digital
Product lineBlue SN550 NVMe
Model nameWDS100T2B0C
Total capacity1 TB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 2,400 MB/s
Sequential write speedUp to 1,950 MB/s
Random read (4K)Up to 345,000 IOPS
Random write (4K)Up to 385,000 IOPS
Storage
NAND flash type3D NAND
Write endurance600 TB
Ports & slots
Interface typePCI-Express 3.0 x4
Power
Idle power drawPS3 (Low Power): 30 mW
PS4 (Sleep): 5 mW
Active power draw3.5 W
Size & build
Form factorM.2 2280
Overall height2.38 mm
Overall width22 mm
Product depth80 mm
Product weight6.5g
Shipping weight0.05 kg
Package size130 × 100 × 3 mm
Environment & compliance
Operating temperature range0 °C to 70 °C
Storage temperature range-55 °C to 85 °C
Max shock tolerance1,500G @ 0.5 ms half sine
Vibration toleranceOperating: 5 gRMS, 10-2000 Hz, 3 axes
Non-operating: 4.9 gRMS, 7-800 Hz, 3 axes
More details
Mean time to failure1.7M hours

Other versions of this model

2 more in the same range

Questions about this item

Which capacity of the Blue SN550 NVMe should I pick for a typical desktop build?

The 1 TB model gives you 600 TBW endurance and 1.7 M hours MTTF, enough headroom for heavy daily workloads without over-provisioning.

What does the 2 400 MB/s sequential read figure mean once the drive is installed in my PC?

Large files such as game assets or video projects will load at up to 2 400 MB/s, cutting wait times compared with SATA SSDs while staying within the PCIe 3.0 x4 link.

Does the PCIe 3.0 x4 interface cap real-world throughput?

The four-lane Gen 3 connection limits peak transfer to the rated 2 400 MB/s read and 1 950 MB/s write, so you will not see higher numbers even on a newer motherboard.

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