This article covers ウエスタンデジタル WD Blue SN580 NVMe SSD 2TB M.2 PCIe Gen4.

Overview

The Western Digital WD Blue SN580 NVMe SSD 2TB (model WDS200T3B0E) is a PCIe Gen4 internal SSD aimed at creators and professionals. With sequential read speeds up to 4,150 MB/s, it handles large photo libraries, 4K video files, and application data with ease. The M.2 2280 form factor makes it suitable for both desktop and compatible laptop upgrades. This drive uses a DRAM-less design but leverages Host Memory Buffer (HMB) technology to maintain random access performance. It is powered by a Phison E21T controller paired with 3D TLC NAND flash. The 2TB variant offers 900TBW endurance and comes with a 5-year manufacturer warranty. Positioned in the mid-range segment, the SN580 delivers Gen4 speeds at a reasonable price point. It also includes Acronis True Image for Western Digital migration software, simplifying the upgrade process from an existing drive.

Compatibility Guide

The WD Blue SN580 is an M.2 2280 NVMe SSD. It uses a PCIe Gen4 x4 interface but is backward compatible with PCIe Gen3 slots (speed will be limited to Gen3 levels). Supported socket: M.2 Key M (2280 length) Memory type: NAND flash (no RAM required for SSD operation) Form factor: M.2 2280 (single-sided) PCIe version: PCIe 4.0 x4 (compatible with Gen3 x4) Storage interface: NVMe 1.4 Power: Powered directly from the M.2 slot (3.3V) Be aware that some older motherboards may have M.2 slots that only support SATA mode. In such cases, NVMe SSDs will not be detected, so check your motherboard specifications beforehand.

Product Info

The WD Blue SN580 was released in 2023. It occupies the mid-range market tier, sitting between entry-level PCIe Gen3 SSDs and high-end Gen4 drives. The 2TB model typically retails for around ¥62,000, offering good value for its capacity and performance. Release date: 2023 Warranty: 5 years (no registration required) Endurance: 900TBW (2TB model) Sequential read: up to 4,150 MB/s Sequential write: up to 4,150 MB/s (rated) Controller: Phison E21T (DRAM-less, HMB) * NAND: Western Digital 3D TLC (112L or 176L)

Best Use Cases

Content creators and video editors: The high sequential speeds significantly reduce transfer times for large media files. Ideal for workflows involving 4K video, RAW photos, and large project files. Gamers: While game load times will improve, the difference between Gen4 and Gen3 may not be dramatic in most titles. Still, a solid choice for a fast game library drive. * Laptop storage upgrades: Perfect for replacing a slow SATA SSD or small-capacity NVMe drive in a laptop with an M.2 2280 slot. Low power consumption helps preserve battery life.

Things to Consider

The DRAM-less design means the SN580 is not ideal for heavy random write workloads like servers or databases. HMB helps, but under sustained high-load writes, performance may drop compared to DRAM-equipped drives like the WD Black SN850X. To get the full Gen4 speed, you need a motherboard with a PCIe 4.0 M.2 slot. If installed in a Gen3 slot, performance will be capped at around 3,500 MB/s, making it comparable to a good Gen3 SSD. If your system only supports Gen3, consider a cheaper Gen3 drive instead. Competitors include the Crucial P3 Plus (QLC, lower endurance) and Samsung 980 Pro (DRAM, higher price). The SN580 strikes a balance between cost and endurance, making it a strong choice for mainstream users who need reliable high-speed storage.

Product Disclosure (Amazon)

  • Manufacturer: ウエスタンデジタル(Western Digital)
  • Seller: 夢品店
  • Fulfilled by: Amazon
  • ASIN: B0C8WPRM9T
  • Note: This article covers a manufacturer-made product based on Amazon listing details.