This article covers WD10EZRZ-RT [WD Blue（1TB 3.5インチ SATA 6G 5400rpm 64MB）].

Overview

The WD Blue WD10EZRZ-RT is a 1TB 3.5-inch internal hard drive from Western Digital's reliable WD Blue series. Spinning at 5400RPM with a 64MB cache, it connects via SATA 6Gb/s and is designed for cost-effective bulk storage. This entry-level model is ideal for data archiving, backup drives, and secondary storage in desktop PCs. Its low power draw and quiet operation make it a solid choice for always-on systems like NAS enclosures.

Compatibility Guide

This HDD uses the standard 3.5-inch form factor and requires an available 3.5-inch drive bay in a desktop case. It is not compatible with laptops unless used via an external enclosure. Interface-wise, it supports SATA 6Gb/s and works with any SATA port on modern motherboards. Power is supplied through a standard SATA power connector. While it can serve as a boot drive, its 5400RPM speed makes it better suited as a secondary storage device alongside an SSD for the operating system.

Product Info

The WD10EZRZ-RT is widely available through Western Digital's official store, major retailers, and online marketplaces. Pricing typically falls around ¥9,999–¥11,000 (tax included). It comes with a 2-year limited warranty. Positioned in the entry-level tier of the WD Blue family, this drive emphasizes reliability and low cost over peak performance. It uses a 5400RPM spindle speed and 64MB cache to balance speed and power consumption.

Best Use Cases

First, the drive is perfect for budget-conscious users who need a large amount of storage for media files, backups, or documents. Its low price per gigabyte makes it economical for storing photos, videos, and archives. Second, it works well as a storage disk in a home NAS server or external USB enclosure. The 5400RPM speed keeps noise and heat low during 24/7 operation. Third, gamers can use it as a secondary drive to store less frequently played titles, reserving the SSD for the operating system and favorite games. ## Alternatives
In the same price range, the Seagate BarraCuda 1TB (ST1000DM010) is a direct competitor. It spins at 7200RPM, delivering higher sequential read/write speeds, but runs slightly hotter and consumes more power. Another alternative is the Toshiba DT01ACA100, also 7200RPM, offering similar performance. If noise and power efficiency are priorities, the WD10EZRZ-RT remains the better choice; for raw transfer speed, the 7200RPM alternatives win.

Things to Consider

At 5400RPM, the WD10EZRZ-RT is slower than 7200RPM drives, which may become a bottleneck if used as a primary OS drive. Pairing it with an SSD is strongly recommended. The 64MB cache is modest, so performance under heavy random I/O or large numbers of small files may be lower than expected. Additionally, this model may use Shingled Magnetic Recording (SMR), which can cause write speed degradation after sustained writes. Always confirm your intended workload before purchase.

Product Disclosure (Amazon)

  • Manufacturer: ウエスタンデジタル(Western Digital)
  • Seller: ターゲットジャパン
  • Fulfilled by: ターゲットジャパン
  • ASIN: B018RW7GS6
  • Note: This article covers a manufacturer-made product based on Amazon listing details.