ウエスタンデジタル WD Blue SN570 500GB M.2 NVMe SSD

This article covers ウエスタンデジタル WD Blue SN570 500GB M.2 NVMe SSD.

Overview

Western Digital's WD Blue SN570 500GB is an M.2 NVMe SSD that leverages the PCIe Gen3 x4 interface to deliver sequential read speeds of up to 3,500 MB/s and write speeds of up to 2,300 MB/s. Positioned as an entry-level to mid-range drive, it offers a balanced capacity of 500 GB that works well as an OS boot drive or game storage. Although it is a DRAM-less design, it uses Host Memory Buffer (HMB) technology to maintain snappy everyday performance. Built with Western Digital's in-house controller and BiCS5 112-layer TLC NAND flash, the SN570 comes with a 5-year limited warranty, making it a reliable and affordable upgrade for users moving from SATA SSDs.

Compatibility Guide

Form factor: M.2 2280 (22x80 mm) – fits into any standard M.2 slot on modern motherboards and most notebooks. Interface: PCIe 3.0 x4, NVMe 1.4. Backward compatible with PCIe 4.0 slots (runs at Gen3 speeds). Does not work in SATA-only M.2 slots – verify your motherboard supports NVMe. Heat output is moderate; a simple heatsink is recommended under sustained heavy writes.

Product Info

The WD Blue SN570 500GB (model WDS500G3B0C) was launched in 2021 and is available through major retailers. The street price on is approximately ¥23,800 (subject to fluctuation). It comes with a 5-year warranty. This drive sits in the entry-to-mid tier, offering excellent value for gamers and general users who want NVMe performance without the premium of PCIe 4.0.

Best Use Cases

Boot drive for a budget PC: Accelerates OS and application loading dramatically. 500 GB is enough for Windows, essential software, and a few large games. Cost-conscious gaming build: The difference in game loading times between PCIe 3.0 and 4.0 is negligible for most titles, so this SSD saves money without sacrificing real-world speed. * Laptop storage upgrade: Low power consumption and heat make it ideal for upgrading M.2-capable notebooks to NVMe storage. ## Alternatives
Key competitors in the same price bracket are the Crucial P3 500GB (PCIe 3.0, QLC NAND, slower writes) and the Samsung 980 500GB (PCIe 3.0, TLC, slightly higher random write but lower sequential read). The SN570 offers competitive sequential reads and a robust 5-year warranty; its primary advantage over the QLC-based P3 is better write endurance. If you frequently write large files, consider the Samsung 980 for slightly better sustained performance, or step up to a DRAM-equipped model like the WD Black SN770.

Things to Consider

DRAM-less architecture: Write speeds can drop during long continuous transfers. For typical desktop/office usage the HMB feature mitigates this, but heavy video editors or data hoarders should look at DRAM-equipped drives (e.g., WD Black SN770). 500 GB capacity limit: You'll fill this quickly if you install several AAA titles. Heavy gamers should opt for the 1 TB variant. * PCIe 3.0 limitation: On a PCIe 4.0 motherboard you won't get the full bandwidth. If future-proofing is a priority, a Gen4 drive like the SN770 (comparable price per GB) would be a better fit.

Product Disclosure (Amazon)

• Manufacturer: ウエスタンデジタル(Western Digital)
• Seller: エルメ
• Fulfilled by: エルメ
• ASIN: B09JGDBPJG
• Note: This article covers a manufacturer-made product based on Amazon listing details.