This article covers Western Digital (ウエスタンデジタル) WD Blue 3To SATA 3.5p PC 6Gb.

Overview

The Western Digital WD Blue series has long been the go-to internal hard drive for desktop PCs, offering a solid balance of capacity, reliability, and affordability. The WD30EZAX is a 3TB model with a SATA 6Gb/s interface, 5400 RPM spindle speed, and 64MB cache. It's designed for everyday storage tasks like file archiving, media libraries, and backup. Priced competitively in the 3TB segment, this drive delivers excellent cost per gigabyte. While it can't match SSDs in speed, it remains a practical choice for users who need bulk storage without breaking the bank.

Compatibility Guide

Interface: SATA 6Gb/s (backward compatible with SATA 3Gb/s and 1.5Gb/s). Form factor: 3.5-inch, fits standard desktop drive bays. Not compatible with laptops. Power: SATA 15-pin power connector; data via SATA 7-pin cable. Most desktop power supplies include these cables. No special PSU requirements; a standard 300W or higher unit is sufficient.

Product Info

The WD30EZAX is part of WD's Blue lineup, positioned as an entry-to-mid-range internal HDD. Key specifications include: Capacity: 3TB Rotational speed: 5400 RPM Cache: 64MB Average latency: 4.17ms Transfer rate: up to 175 MB/s (sequential read) Power consumption: 5.3W read/write, 4.2W idle Dimensions: 147 x 101.6 x 26.1 mm Weight: 640g * Warranty: 2 years It has been on the market for some time but remains widely available through major retailers like .

Best Use Cases

File server or NAS storage: 3TB provides ample space for photos, videos, and documents. Multiple drives can be combined in RAID for larger capacity or redundancy. Game installation drive: Modern games often exceed 100GB; 3TB gives plenty of room. Load times are slower than SSDs, but the cost savings are significant. * Backup drive: Ideal for system images and important data backups where speed is less critical than capacity and cost. ## Alternatives
Direct competitors include the Seagate BarraCuda 3TB (ST3000DM008), which offers similar specs (5400 RPM, 64MB cache). The WD Blue is often praised for quieter operation and consistent reliability, while Seagate may advertise slightly higher burst speeds. Choice between them often comes down to brand preference. Another alternative is the Toshiba DT01ACA300, but the WD Blue generally has better availability in many markets.

Things to Consider

At 5400 RPM, sequential transfer speeds are lower than 7200 RPM drives. If you frequently copy large files, consider a 7200 RPM model or an SSD. 3.5-inch HDDs are sensitive to vibration and shock. Ensure the drive is securely mounted and avoid moving the PC while it's running. The 2-year warranty is shorter than the 5-year coverage typical of SSDs. For long-term use, maintain a backup strategy. If you already use an SSD as your primary drive, this HDD is perfect as secondary storage. Do not use it as an OS drive for best performance.

Product Disclosure (Amazon)

  • Manufacturer: WD
  • Seller: 八機商事
  • Fulfilled by: 八機商事
  • ASIN: B0BNGNT5X3
  • Note: This article covers a manufacturer-made product based on Amazon listing details.