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Black M.2 2280 SSD with green circuit board and silver label

Western Digital

Western Digital WDS500G1X0E BLACK SN850 500GB internal SSD

SKU CH-J5J2-WT3BT MPN WDS500G1X0E

A 500GB M.2 2280 internal SSD with PCIe 4.0 x4 interface delivering up to 7000 MBps read and 4100 MBps write speeds for consumer gaming systems

  • Device TypeInternal Solid State Drive (SSD)
  • Used ForConsumer
  • Form FactorM.2 2280
  • Capacity500GB
  • Memory Components3D NAND
  • InterfacePCI-Express 4.0 x4

Options 500GB

  • Sequential reads hit 7000 MBps for near-instant game loads
  • Sequential writes reach 4100 MBps to cut install and save times
  • Random reads up to 810000 IOPS keep open-world textures streaming smoothly
  • PCIe 4.0 x4 interface unlocks full NVMe bandwidth for responsive play
  • 300 TBW endurance rating backs heavy daily gaming workloads

WD BLACK SN850 500GB NVMe SSD

The WD BLACK SN850 is a consumer-grade M.2 2280 solid-state drive built for high-performance PCs and laptops. It uses PCIe 4.0 x4 and 3D NAND to deliver responsive storage for gaming and demanding workloads. Not intended for NAS or server environments.

500GB capacity with 300TB endurance

Sequential reads reach 7000 MBps and writes reach 4100 MBps, while random performance hits 810000 read IOPS and 680000 write IOPS. The 300TB TBW rating and 1.75M hour MTTF provide headroom for heavy daily use. Sustained write workloads will saturate the rated write bandwidth before exhausting endurance.

PCIe 4.0 x4 M.2 2280 integration

The single-sided 2.38mm height and 22.00mm width fit standard M.2 slots without blocking adjacent components. A motherboard with a PCIe 4.0 x4 M.2 slot is required to achieve the quoted speeds. The drive operates from 0°C to 70°C and includes access to WD_BLACK Dashboard software for monitoring and firmware updates.

Highlights

  • Sequential reads hit 7000 MBps for near-instant game loads
  • Sequential writes reach 4100 MBps to cut install and save times
  • Random reads up to 810000 IOPS keep open-world textures streaming smoothly
  • PCIe 4.0 x4 interface unlocks full NVMe bandwidth for responsive play
  • 300 TBW endurance rating backs heavy daily gaming workloads

Specifications

BrandWestern Digital
SeriesBLACK SN850 NVMe
ModelWDS500G1X0E
Device TypeInternal Solid State Drive (SSD)
Used ForConsumer
Form FactorM.2 2280
Capacity500GB
Memory Components3D NAND
InterfacePCI-Express 4.0 x4
Max Sequential ReadUp to 7000 MBps
Max Sequential WriteUp to 4100 MBps
4KB Random ReadUp to 810,000 IOPS
4KB Random WriteUp to 680,000 IOPS
Terabytes Written (TBW)300TB
MTTF1.75M Hours
FeaturesEXPERIENCE SUPREME PERFORMANCE
Prepare for the next evolution of speed with the WD_BLACK SN850 NVMe SSD, giving you supreme PCIe Gen4 technology for your PC or laptop (not intended for NAS or server environments) so you don't lag out on the next generation of games.
SPEED KILLS. THIS DECIMATES.
You asked for fast, we over delivered. The WD_BLACK SN850 NVMe SSD reaches irrational 7000 MB/s read speed and 5300 MB/s write speed (1TB model) to get you in quicker, with up to 1,000,000 IOPS (1TB and 2TB models) for a smooth, responsive and powerful gaming experience.
STORE MORE, PLAY MORE
Operating Temperature0°C ~ +70°C
Storage Temperature-55°C ~ +85°C
Height2.38mm
Width22.00mm
Depth80.00mm
Weight7.50g
Shipping weight0.05 kg
Package size127 × 102 × 22 mm

Other versions of this model

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Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will the WD_BLACK SN850 500GB run at PCIe 4.0 speeds on my older PCIe 3.0 motherboard?

The drive is backward compatible and will operate at PCIe 3.0 x4 speeds on an older motherboard, delivering reduced sequential performance compared to the rated 7000 MBps read and 4100 MBps write.

How can I verify the WD_BLACK SN850 500GB is hitting its rated 7000 MBps read and 4100 MBps write speeds after installation?

Run a benchmark tool such as CrystalDiskMark using a 1 GiB test file on an empty drive; results should approach the stated sequential figures when the M.2 slot runs at PCIe 4.0 x4.

Does the WDS500G1X0E include a heatsink or mounting screw, or must I buy them separately?

The package contains only the M.2 2280 drive itself; a motherboard standoff screw and any aftermarket heatsink must be sourced separately.

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