Datasheet

WD Blue SN550 NVMe SSD Product Features and Specifications
Specification
Interface M.2 2280
1
PCIe Gen3 8 Gb/s, up to 4 Lanes
Formatted Capacity
2
250GB, 500GB, 1TB
Performance³ 250GB 500GB 1TB
Sequential Read (MB/s) up to
2,400 2,400 2,400
Sequential Write (MB/s) up to
950 1,750 1,950
Random Read 4KB IOPS up to
170K 300K 410K
Random Write 4KB IOPS up to
135K 240K 405K
Endurance (TBW)⁴
150 300 600
Power
Average Active Power⁵
75 75 75
Low Power (PS3)⁶
20mW 20mW 20mW
Sleep (PS4) (low power)⁶ 5mW 5mW
5mW
Maximum Operating Power 3.5W 3.9W
4.9W
Reliability
MTTF
3
1.7M 1.7M 1.7M
Environmental
Operating Temperatures
4
32°F to 158°F (0°C to 70°C) 32°F to 158°F (0°C to 70°C) 32°F to 158°F (0°C to 70°C)
Non-operating Temperatures
5
-67°F to 185°F (-55°C to 85°C) -67°F to 185°F (-55°C to 85°C) -67°F to 185°F (-55°C to 85°C)
Operating Vibration 5.0 gRMS, 10–2000 Hz, 3 axes 5.0 gRMS, 10–2000 Hz, 3 axes 5.0 gRMS, 10–2000 Hz, 3 axes
Non-Operating Vibration 4.9 gRMS, 7–800 Hz, 3 axes 4.9 gRMS, 7–800 Hz, 3 axes 4.9 gRMS, 7–800 Hz, 3 axes
Shock 1,500 G @ 0.5 msec half sine 1,500 G @ 0.5 msec half sine 1,500 G @ 0.5 msec half sine
Certifications BSMI, CAN ICES-3(B)/NMB-3(B), CE, FCC,
KCC, Morocco, RCM, TUV, UL, VCCI
BSMI, CAN ICES-3(B)/NMB-3(B), CE, FCC,
KCC, Morocco, RCM, TUV, UL, VCCI
BSMI, CAN ICES-3(B)/NMB-3(B), CE, FCC,
KCC, Morocco, RCM, TUV, UL, VCCI
Limited Warranty
6
5 years 5 years 5 years
Physical Dimensions
Form Factor M.2 2280 M.2 2280 M.2 2280
Length 80 ± 0.15mm 80 ± 0.15mm 80 ± 0.15mm
Width 22 ± 0.15mm 22 ± 0.15mm 22 ± 0.15mm
Height 2.38mm 2.38mm 2.38mm
Weight 6.5g ± 1g 6.5g ± 1g 6.5g ± 1g
Ordering Information⁴
Model Number WDS250G2B0C WDS500G2B0C WDS100T2B0C
02–01-WW-04–00050-A01 December 2019
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actual products. References in this publication to Western Digital products, programs, or services do not imply that they will be made available in all countries. Product
specifications provided are sample specifications that are subject to change and do not constitute a warranty. Please visit our website,
http://www.westerndigital.com for additional information on product specifications.
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PRODUCT BRIEF
 Backwards compatible with PCIe Gen3 x2, PCIe Gen2 x4, PCIe Gen2 x2, and PCIe Gen2 x1.
 1TB=1, 000,000,000,000 bytes. 1GB=1,000,000,000 bytes. Actual user storage less.
 Test Conditions: Performance is based on the CrystalDiskMark 6.0.2 benchmark using a 1000MB LBA range ASUS Z270A desktop with Intel® i7–7700K 3.4GHz, 8GB 2133MHz DDR4.
Windows 10 Pro 64-bit 19H1 using Microsoft StorNVMe driver, secondary drive. Performance may vary based on host device. 1 MB = 1,000,000 bytes. IOPS = input/output operations per
second.
 TBW (terabytes written) values calculated using JEDEC client workload (JESD219) and vary by product capacity.
 Measured using the MobileMark™ 2014 on ASUS B9440UA WITH I5–7200U, 8GB RAM. Windows 10 Pro 64-bit 19H1 using Microsoft StorNVMe driver, Primary drive.
 MTTF = Mean Time To Failure based on internal testing using Telcordia stress part testing (Telcordia SR-332, GB, 25°C). MTTF is based on a sample population and is estimated by statistical
measurements and acceleration algorithms. MTTF does not predict an individual drive’s reliability and does not constitute a warranty.
 Operational temperature is measured by an on board temperature sensor.
 Non-operational storage temperature does not guarantee data retention.
 5 years or Max Endurance (TBW) limit, whichever occurs first. See support.WesternDigital.com for regional specific warranty details.