This article covers WD BLACK SN850 NVMe SSD HS 2TB付き.

Overview

The WD BLACK SN850 NVMe SSD HS 2TB is a high-performance PCIe Gen4 NVMe SSD released by Western Digital. With sequential read speeds of up to 7,000 MB/s, it delivers blazing-fast load times for games and large file transfers. The heatsink-equipped model is officially compatible with the PlayStation 5, making it an ideal storage expansion for console gamers. With a 2TB capacity, it offers ample space for AAA titles and creative projects alike. Leveraging the full bandwidth of the PCIe Gen4 x4 interface, this SSD roughly doubles the throughput of previous-gen Gen3 drives. Western Digital’s nCache 4.0 technology enhances random access performance, improving OS boot times and application responsiveness. The WD BLACK Dashboard software allows easy firmware updates, performance monitoring, and game mode switching.

Compatibility Guide

This SSD uses the M.2 2280 form factor and interfaces via NVMe (PCIe Gen4 x4). It is backward-compatible with PCIe Gen3 slots, but speeds will be limited to ~3,500 MB/s. No specific CPU socket restrictions apply—any desktop or laptop with an M.2 slot can accommodate it, but the integrated heatsink adds thickness, so ensure clearance around the M.2 area on your motherboard. For PS5 installation, the heatsink is pre-installed and fits the expansion bay perfectly. The drive supports NVMe 1.4, TRIM, SMART, and other standard features. Power is supplied entirely through the PCIe slot, so no additional cables are needed. However, older motherboards may have clearance issues due to the heatsink’s height; check your board’s M.2 slot placement before purchase.

Product Info

The WD BLACK SN850 NVMe SSD HS 2TB launched in mid-2021 as a high-end Gen4 NVMe SSD. It competes directly with the Samsung 980 Pro and Seagate FireCuda 530 in the enthusiast segment. Pricing in Japan is around ¥81,512 (, as of May 2026), which is standard for a 2TB Gen4 drive. The warranty covers five years or up to the TBW limit—1,200 TB for this 2TB model—ensuring long-term reliability. It is widely available at electronics retailers and online stores.

Best Use Cases

PC Gamers: The drive dramatically reduces game load times and texture streaming, especially in open-world and large-scene games. It fully supports Microsoft DirectStorage for next-gen gaming performance. PS5 Owners: Officially licensed for PS5 expansion, this model fits perfectly with its pre-installed heatsink, delivering the console’s maximum data transfer speed. Game installs and launches become nearly instant. * Content Creators: For 4K/8K video editing, 3D rendering, or large data transfers, the 7,000 MB/s read and 5,300 MB/s write speeds cut down workflow bottlenecks significantly.

Things to Consider

To achieve maximum performance, a PCIe Gen4-capable motherboard (AMD B550/X570, Intel Z590/Z690 or newer) is required. Using it in a Gen3 system will cap speeds at Gen3 levels. Also, the integrated heatsink may prevent installation in slim laptops or some compact mini-ITX cases—always verify physical clearance. In terms of value, the 2TB price point is competitive with other high-end Gen4 SSDs, but consider whether you truly need 2TB versus 1TB for your use case. The WD BLACK Dashboard’s Game Mode feature is only effective with certain titles, so don’t expect universal gains. Overall, this is a premium choice for users who demand top-tier storage performance.

Product Disclosure (Amazon)

  • Manufacturer: ウエスタンデジタル(Western Digital)
  • Seller: APOLO1969
  • Fulfilled by: APOLO1969
  • ASIN: B09C4BKTRV
  • Note: This article covers a manufacturer-made product based on Amazon listing details.