This article covers Western Digital HDD 10TB WD Red NAS RAID 3.5インチ 内蔵HDD WD100EFAX.

Overview

Western Digital's WD Red series is purpose-built for NAS (Network Attached Storage) systems, and the 10TB WD100EFAX is a solid mid-range choice for home and small office users. This 3.5-inch internal hard drive uses a SATA 6Gb/s interface, spins at 5400 RPM, and packs a 256MB cache. It's designed for 24/7 continuous operation, making it ideal for RAID arrays in multi-bay NAS enclosures. Equipped with NASware 3.0 technology, the drive balances performance and data integrity during sustained read/write workloads. The 10TB capacity provides ample room for photo libraries, video archives, and business documents. While it's not the fastest spindle speed on the market, its low power consumption and quiet operation are significant advantages for always-on storage. The WD100EFAX targets users who need reliable, cost-effective bulk storage in a NAS environment. It works well in 1-8 bay systems, supporting RAID 0, 1, 5, 6, and 10 configurations. For home media servers, backup targets, or small office file servers, this drive delivers dependable performance without breaking the bank.

Compatibility Guide

Form factor: 3.5-inch, fits standard desktop drive bays and most NAS enclosures (e.g., Synology DS220+, QNAP TS-453D) Interface: SATA 6Gb/s (backward compatible with SATA 3Gb/s and 1.5Gb/s) Power: Standard SATA power connector, requires a single 15-pin power cable from your PSU Recommended systems: Any NAS with 3.5-inch bays and SATA ports; also works in desktop PCs with available SATA ports and 3.5-inch drive cages This drive is not compatible with 2.5-inch-only enclosures or laptops. If you're building a custom NAS, ensure your case has at least one 3.5-inch drive bay. For RAID configurations, matching drives from the same family (WD Red) is recommended for consistent performance.

Product Info

Released in 2020, the WD Red 10TB (WD100EFAX) sits in the mid-range tier of Western Digital's NAS HDD lineup. It carries a 3-year manufacturer warranty and a 1-year distributor warranty in Japan. The drive is widely available through major retailers like , as well as direct from Western Digital's official store. Key specifications: Capacity: 10TB Interface: SATA 6Gb/s Cache: 256MB Rotational Speed: 5400 RPM Data Transfer Rate: Up to 210 MB/s (read) Power Consumption: ~6.8W (active), ~5.4W (idle) Operating Temperature: 0-65°C Shock Resistance: 250G (non-operating, 2ms) Market positioning: This is an entry-to-mid-level NAS drive, offering a good balance of cost, capacity, and reliability. It's slower than the 7200 RPM WD Red Pro series, but runs cooler and quieter, making it more suitable for home and small office environments where noise matters.

Best Use Cases

  1. Home NAS Backup Ideal for families storing photos, videos, and documents. Pair two of these drives in a 2-bay NAS (e.g., Synology DS220+) with RAID 1 to get 10TB of mirrored storage. The 5400 RPM speed is sufficient for streaming 4K media and handling multiple simultaneous backups. 2. Small Office File Server For a small business with 5-10 employees, a 4-bay NAS with four WD Red 10TB drives in RAID 5 yields 30TB usable capacity. The drive's 24/7 reliability and NASware 3.0 firmware ensure data consistency during long uptimes. 3. Media Streaming Server Running Plex or Emby? This drive can handle multiple 4K HDR streams simultaneously thanks to its sustained 210 MB/s read speed. The low power draw keeps electricity bills down for always-on servers. Who should NOT buy this? Gamers who need fast game loading times ??get an SSD instead. Database servers requiring high random IOPS ??consider enterprise drives or SSDs. * Users who only need 2-4TB of storage ??smaller WD Red models are cheaper. ## Alternatives
    Direct competitor: Seagate IronWolf 10TB (ST10000VN0008) Seagate IronWolf: 7200 RPM, AgileArray technology for RAID optimization, slightly higher random performance. Comes with 3-year warranty, similar price point (around ¥75,000). WD Red (this drive): 5400 RPM, lower power and noise, NASware 3.0 for data integrity. Both are CMR drives (not SMR) suitable for RAID. If you prioritize quiet operation and energy efficiency, choose WD Red. If you need the extra random performance for a busy multi-user environment, IronWolf might be a better fit.

Things to Consider

The WD100EFAX is a CMR (Conventional Magnetic Recording) drive, which is important for RAID compatibility. Some smaller WD Red models (2-6TB) use SMR, which can cause issues in RAID rebuilds. The 10TB variant is safe. 5400 RPM means lower sequential throughput compared to 7200 RPM drives, but in NAS environments, the network (Gigabit Ethernet ~125 MB/s) is usually the bottleneck. Real-world performance difference is minimal. Warranty: 3 years from WD, but the Japanese distributor warranty is only 1 year. Check the seller's policy before purchasing. Price-wise, this drive is very clo

Product Disclosure (Amazon)

  • Manufacturer: WD
  • ASIN: B0719498XY
  • Note: This article covers a manufacturer-made product based on Amazon listing details.