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Silver rectangular 2.5 inch SATA SSD with label showing 4TB capacity

SanDisk

SanDisk WDS400T3B0A-00C7K0 4TB 2.5" SATA internal SSD

SKU CH-5QZ1-T8W2S MPN WDS400T3B0A-00C7K0

A 4 TB 2.5" SATA III internal SSD with DRAM cache, 3D NAND TLC, up to 560 MB/s read and 520 MB/s write, 90,000 read IOPS, 82,000 write IOPS, and 400 TBW endurance

  • Used ForConsumer
  • Form Factor2.5"
  • Capacity4TB
  • Memory Components3D NAND TLC
  • InterfaceSATA III
  • ProtocolSATA

Options 4TB

  • Fast creative workflows with sequential reads up to 560 MBps
  • Responsive multitasking from 90,000 random read IOPS
  • Long-term reliability backed by 400 TBW endurance
  • DRAM cache sustains consistent performance under load
  • Low idle power extends laptop battery life

4TB SATA III SSD for creative workloads

The SanDisk WD Blue SA510 4TB drive uses 3D NAND TLC memory and a DRAM cache to serve content creators and everyday users who need a large, reliable SATA upgrade. It fits any 2.5-inch bay and connects through the standard SATA III interface for broad desktop and laptop compatibility.

Capacity and headroom

Four terabytes provide ample space for project files, media libraries and operating systems, while the 400TB TBW endurance rating supports heavy write cycles over the drive’s life. Sequential reads reach 560MBps and writes 520MBps; random performance tops out at 90,000 read IOPS and 82,000 write IOPS, beyond which sustained throughput will level off.

Thermals, noise and power draw

With no moving parts the drive runs silently and produces minimal vibration compared to mechanical disks. Active power averages 60mW, peaking at 1,800mW during reads and 2,000mW during writes, while idle slumber draws 36mW and DEVSLP only 12mW. The operating range spans 0°C to 70°C, keeping temperatures in check under normal workloads.

Highlights

  • Fast creative workflows with sequential reads up to 560 MBps
  • Responsive multitasking from 90,000 random read IOPS
  • Long-term reliability backed by 400 TBW endurance
  • DRAM cache sustains consistent performance under load
  • Low idle power extends laptop battery life

Specifications

BrandWestern Digital
SeriesSA510 SATA
ModelWDS400T3B0A
Used ForConsumer
Form Factor2.5"
Capacity4TB
Memory Components3D NAND TLC
InterfaceSATA III
ProtocolSATA
CacheDRAM
Max Sequential ReadUp to 560 MBps
Max Sequential WriteUp to 520 MBps
4KB Random ReadUp to 90,000 IOPS
4KB Random WriteUp to 82,000 IOPS
Terabytes Written (TBW)400TB
MTTFUp to 1.75M hours
FeaturesUpgrade Your Creativity
Featuring read speeds up to 560MB/s (500GB and 1TB models), this fast SATA SSD delivers a performance boost that keeps up with your workloads so you can stay creative and be more productive.
Give Your PC a Makeove
Why buy an expensive new desktop? With capacities of up to 1TB, high endurance, plus low power draw for more laptop life between charges and reduced vibrations compared to HDDs, the WD Blue SA510 SATA SSD is the perfect drive for a powerful PC upgrade.
Help Protect Your Content
Clone your computer's entire hard drive to your WD Blue SA510 drive with
Power Consumption (Idle)Slumber (mW): 36
DEVSLP (mW): 12
Power Consumption (Active)Average Active Power (mW): 60
Max Read Operating (mW): 1,800
Max Write Operating6 (mW): 2,000
Operating Temperature0°C ~ +70°C
Storage Temperature-55°C ~ +85°C
Max Shock Resistance1,500G @ 0.5 msec half sine
Max Vibration ResistanceOperating Vibration: 5.0 gRMS, 10-2000 Hz
Non-operating Vibration: 4.9 gRMS, 7-800 Hz
Height7.00mm
Width69.85mm
Depth100.20mm
Weight34.60g
Shipping weight0.06 kg
Package size173 × 117 × 19 mm

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Questions about this item

Will the 2.5" SATA III connection on the WD Blue SA510 work with my older laptop that only has a SATA II port?

Yes, the SATA III interface is backward compatible with SATA II ports, though sequential speeds will be limited to the older port's maximum.

How can I verify the drive is delivering the rated 560 MBps read and 520 MBps write speeds after installation?

Run a benchmark tool such as CrystalDiskMark or AS SSD and compare the sequential read and write results to the 560 MBps and 520 MBps specifications.

Does the retail package include a 2.5" to 3.5" mounting bracket or a SATA data cable for a desktop install?

The box contains the 4 TB 2.5" SSD and a download code for Acronis True Image cloning software; mounting brackets and SATA cables are not included.

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