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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

  • Total capacity500 GB
  • Sequential read speedUp to 7,000 MB/s
  • Sequential write speedUp to 4,100 MB/s
  • Interface typePCI-Express 4.0 x4
  • Form factorM.2 2280
  • Product typeInternal Solid State Drive (SSD)

Model 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.

How it compares

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

Price $69.99
Cheaper than about 83% of the 1,994 comparable items (median $180.49).
Total capacity 500 GB
Lower than about 70% of the 1,368 comparable items (median 1 TB).
Sequential read speed Up to 7,000 MB/s
Higher than about 80% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $139.98 per TB
Cheaper than about 62% of the 1,362 comparable items (median $165.50 per TB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameWestern Digital
Product lineBLACK SN850 NVMe
Model nameWDS500G1 × 0E
Total capacity500 GB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 7,000 MB/s
Sequential write speedUp to 4,100 MB/s
Random read (4K)Up to 810,000 IOPS
Random write (4K)Up to 680,000 IOPS
Storage
NAND flash type3D NAND
Write endurance300 TB
Ports & slots
Interface typePCI-Express 4.0 x4
Size & build
Form factorM.2 2280
Overall height2.38 mm
Overall width22 mm
Product depth80 mm
Product weight7.5g
Shipping weight0.05 kg
Package size127 × 102 × 22 mm
Environment & compliance
Operating temperature range0 °C to 70 °C
Storage temperature range-55 °C to 85 °C
More details
Mean time to failure1.75M Hours

Other versions of this model

4 more in the same range

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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