Blue 500GB Internal SSD Solid State Drive - SATA 6Gb/s 2.5 Inch - WDS500G1B0A

Superior performance for high-end computing
For high-end computing applications like gaming, HD media playback, or creative software, WD Blue solid state drives have the speed you need for the performance you want. Tiered caching technology utilizes SLC (single-level cell) and TLC (triple-level cell) flash technology to enable sequential read speeds of up to 545MB/s and sequential write speeds of up to 525MB/s, allowing for fast system boot up, quick application response, and rapid transfer speeds.

Leading-edge reliability
With no moving parts, a solid state drive is designed to help protect against data loss if a drive is accidentally bumped or dropped. And with 1.75M hours MTTF (mean time to failure) and an endurance rating of up to 400 TBW (terabytes written), WD Blue SSDs can help guard data for years to come. WD Blue solid state drives also use several leading error-correction technologies to help prevent data loss and provide lasting reliability.

Maximized multitasking
WD Blue solid state drives are optimized for multitasking and can easily run several resource-heavy applications simultaneously. Run a background virus scan while watching a 4K video and checking your email.

The right form factor for your PC
WD Blue SSDs are available in either a 2.5”/7mm cased or an M.2 2280 model to evolve with smaller and thinner computers. With form factors to accommodate most laptops, desktop PCs, and small form PCs, a WD Blue SSD is ready for the job.

Broad compatibility
Every WD Blue SSD goes through extensive compatibility and reliability testing to ensure it meets the highest standards of the WD brand. With a certification from the WD Functional Integrity Testing Lab (FIT Lab™), every WD Blue SSD is verified for compatibility with a wide range of desktop and laptop computers.

Free WD SSD Dashboard
The downloadable WD SSD Dashboard provides a suite of tools so you’re always able to check on the health of your solid state drive. Available for free, this Dashboard helps you track things such as disk model, firmware version, S.M.A.R.T. attributes, or simply monitor how much space you have left on your WD Blue SSD.

3-year limited warranty
Every WD Blue SSD comes with a 3-year limited warranty, so you can be confident of your storage when you upgrade or replace any of your drives.

Manufacturer Part Number
Full Product Specifications


  • The full product specifications below are from the manufacturer and may contain information related to other package quantities that will not apply to the product that you are reviewing. Please confirm the actual content and/or package quantity from the main product specifications page.
  • These specifications may represent the entire product series/model/line to which this product belongs with specific configuration differences between the individual products stated.
  • These specifications may have been copied from the same product in other region/country in which case there might be minor differences in region-specific data such as Input Voltage, Terms of Warranty etc.

Product Specifications
Interface1, 2 2.5"/7mm cased: SATA III 6 Gb/s
Interface1, 2 M.2 2280: SATA III 6 Gb/s
Formatted capacity: 250GB, 500GB, 1TB

Sequential Read up to (MB/s):
250GB: 540
500GB: 545
1TB: 545

Sequential Write up to (MB/s):
250GB: 500
500GB: 525
1TB: 525

Random Read up to (IOPS):
250GB: 97k
500GB: 100k
1TB: 100k

Random Write up to (IOPS):
250GB: 79k
500GB: 80k
1TB: 80k

Endurance4 (TBW):
250GB: 100
500GB: 200
1TB: 400

Power5 :
Average Active Power (mW):
250GB: 70
500GB: 70
1TB: 70

Max Read Operating (mW):
250GB: 2,350
500GB: 2,850
1TB: 2,850

Max Write Operating (mW):
250GB: 3,400
500GB: 4,000
1TB: 4,400

250GB: 4.9–6.0
500GB: 6.0–7.7
1TB: 6.0–9.7

250GB: Up to 1.75M hours
500GB: Up to 1.75M hours
1TB: Up to 1.75M hours

Environmental :
Operating Temperatures:
250GB: 0°C to 70°C
500GB: 0°C to 70°C
1TB: 0°C to 70°C

Non-operating Temperatures:
250GB: -55°C to 85°C
500GB: -55°C to 85°C
1TB: -55°C to 85°C

Operating Vibration:
250GB: 5.0 gRMS, 10–2000 Hz
500GB: 5.0 gRMS, 10–2000 Hz
1TB: 5.0 gRMS, 10–2000 Hz

Non-operating Vibration:
250GB: 4.9 gRMS, 7–800 Hz
500GB: 4.9 gRMS, 7–800 Hz
1TB: 4.9 gRMS, 7–800 Hz

250GB: 1,500 G @ 0.5 msec half sine
500GB: 1,500 G @ 0.5 msec half sine
1TB: 1,500 G @ 0.5 msec half sine


Limited warranty (years)7:
250GB: 3 years
500GB: 3 years
1TB: 3 years

Physical Dimensions
2.5"/7mm cased

Form factor : 2.5"/7mm
Length: 100.2mm
Width: 69.85mm
Height: 7.00mm

250GB: 37.4g
500GB: 37.4g
1TB: 59.7g

Physical Dimensions
M.2 2280

Form factor : 2280
Length: 80.0mm
Width: 22.0mm
250GB: 1.35mm
500GB: 1.35mm
1TB: 1.5mm

250GB: 7±1g
500GB: 7±1g
1TB: 7±1g

Specifications subject to change without notice.

1 Backward compatible to SATA II and I.

2 As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As used for transfer rate or interface, megabyte per second (MB/s) = one million bytes per second, and gigabit per second (Gb/s) = one billion bits per second. Effective maximum SATA 6 Gb/s transfer rate calculated according to the Serial ATA specification published by the SATA-IO organization as of the date of this specification sheet. Visit for details.

3 Performance is based on the CrystalDiskMark benchmark using a 1000MB LBA range on Gigabyte GA-Z77X-UD5H desktop with Intel Z77 chipset, Intel i7-3770 3.4GHz, 8M, Ivy Bridge, Windows 8 64-bit SP1 using Intel iRST version, secondary drive, C-state off. Performance may vary based on host device. 1 MB = 1,000,000 bytes. IOPS = input/output operations per second.

4 TBW (terabytes written) values calculated using JEDEC client workload (JESD219) and vary by product capacity.

5 Measured using the MobileMark™ 2012 benchmark with DIPM (Device Initiated Power Management) enabled.

6 MTTF = Mean Time To Failure based on internal testing using Telcordia stress part testing.

7 See for regional specific warranty details.