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Rectangular 2.5 inch internal SSD with a blue label on a silver metal casing

Western Digital

Western Digital WDS100T2B0A Blue 1TB SATA internal SSD

SKU CH-R2VB-EMBG8 MPN WDS100T2B0A

A 1TB 2.5-inch SATA SSD with 3D NAND delivering up to 560 MB/s reads and 530 MB/s writes, rated for 400TB written and 1.75M hours MTTF

  • Total capacity1 TB
  • Sequential read speedUp to 560 MB/s
  • Sequential write speedUp to 530 MB/s
  • Interface typeSATA III
  • Form factor2.5 in (6.35 cm)
  • Product typeInternal Solid State Drive (SSD)

Model 1TB

  • 1TB capacity stores more games and media
  • 3D NAND technology delivers up to 560 MB/s sequential read speed
  • 400 TBW endurance rating supports heavy daily workloads
  • 75M hour MTTF indicates long-term drive reliability
  • WD F.I.T. Lab certification ensures broad system compatibility

What this drive is

The Western Digital Blue 1TB SATA SSD uses 3D NAND to deliver sequential reads up to 560 MBps and writes up to 530 MBps. It is built for everyday consumer workloads such as OS boot, application launch and general file storage. Endurance is rated at 400 TBW with an MTTF of 1.75M hours.

Check your system first

Verify that your motherboard or laptop has a free SATA III port and a 2.5 inch drive bay or caddy. Confirm the operating system supports the SATA interface and that you have a SATA data cable and a SATA power connector available. The drive operates between 0°C and 70°C, so ensure adequate airflow in the chassis.

How it fits a build

The 2.5 inch form factor slides into standard drive bays and leaves M.2 slots open for other devices. Average active power draw is 60mW with max read at 2,550mW and max write at 3,750mW, reducing thermal load. WD F.I.T. Lab certification confirms broad compatibility, and free downloadable software handles drive monitoring, cloning and backup.

How it compares

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

Price $183.99
Typical for this category: the median of 1,994 items is $180.49.
Total capacity 1 TB
Typical for this category: the median of 1,368 items is 1 TB.
Sequential read speed Up to 560 MB/s
Lower than about 60% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $183.99 per TB
Pricier than about 56% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameWestern Digital
Product lineBlue
Model nameWDS100T2B0A
Total capacity1 TB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 560 MB/s
Sequential write speedUp to 530 MB/s
Random read (4K)Up to 95,000 IOPS
Random write (4K)Up to 84,000 IOPS
Storage
NAND flash type3D NAND
Write endurance400 TB
Ports & slots
Interface typeSATA III
Power
Idle power draw56mW (Slumber)
5-12mW (DEVSLP)
Active power draw60mW (Avg. Active Power)
2,550mW (Max Read Operating)
3,750mW (Max Write Operating)
Size & build
Form factor2.5 in (6.35 cm)
Overall height7 mm
Overall width69.85 mm
Product depth100.2 mm
Product weight37.4g
Shipping weight0.08 kg
Package size127 × 102 × 23 mm
Environment & compliance
Operating temperature range0 °C to 70 °C
Storage temperature range-55 °C to 85 °C
Max shock tolerance1,500G @ 0.5 msec half sine
Vibration toleranceOperating: 5.0 gRMS, 10-2000 Hz
Non-operating: 4.9 gRMS, 7-800 Hz
More details
Mean time to failureUp to 1.75M hours

Other versions of this model

5 more in the same range

Questions about this item

What comes in the box with the WD Blue WDS100T2B0A and what must I buy separately?

The drive itself is a 2.5-inch 1TB SATA III SSD using 3D NAND. You will need a SATA data cable and a SATA power connector from your power supply; mounting brackets or adapter trays for your specific case or laptop are also sold separately.

How do I choose between the capacities available for this WD Blue SATA SSD?

This model is the 1TB version. The same series offers capacities up to 4TB, all sharing the same 560 MB/s read and 530 MB/s write speeds, so pick the capacity that matches your storage budget and space needs.

What does the 560 MB/s sequential read figure mean once the drive is installed in my PC?

It is the peak throughput the controller can deliver over the SATA III link when reading large, contiguous files; real-world speeds will be lower due to OS overhead, file fragmentation and the 6 Gb/s bus limit.

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