This article covers WD Red Plus 8TB NAS 3.5インチ 内蔵ハードドライブ.

Overview

Western Digital's WD Red Plus 8TB is a 3.5-inch internal hard drive purpose-built for NAS environments. It uses Conventional Magnetic Recording (CMR) technology, ensuring stable performance in RAID arrays. The drive spins at 5640 RPM, connects via SATA 6 Gb/s, and packs a 128MB cache — all optimized for continuous 24/7 operation.
This model is tested for NAS systems with up to 8 bays, making it a solid choice for small-to-medium businesses and home offices. With an 8TB capacity and a workload rate of 180TB per year, it can handle file sharing, archiving, and backup duties without breaking a sweat.
Positioned in the mid-range market, the WD Red Plus strikes a balance between reliability and cost. Compared to the standard WD Red (which uses SMR), the Plus version offers better RAID rebuild performance and higher workload tolerance.

Compatibility Guide

The drive uses the standard 3.5-inch form factor and fits into any compatible NAS chassis or desktop PC bay. It uses a SATA 6 Gb/s interface, backward compatible with SATA II (3 Gb/s). Power is supplied via a standard SATA power connector.
For RAID setups, the CMR technology ensures consistent write performance during array rebuilds — a key advantage over SMR drives. However, mixing CMR and SMR drives in the same RAID array is not recommended.
The drive works with Windows, macOS, and Linux. While optimized for NAS, it can also serve as internal storage in a regular desktop PC.

Product Info

The WD Red Plus 8TB (model WD80EFBX) launched around 2020. Its street price in Japan is approximately ¥121,000 (tax included), which is typical for an 8TB NAS HDD. The manufacturer provides a 3-year warranty; purchasing through an authorized domestic reseller ensures local support.
Market positioning is mid-range: more affordable than enterprise-grade WD Gold or Ultrastar series, yet more reliable than desktop-oriented WD Blue or Green drives. The 180TB/year workload rating is ample for 24/7 NAS use.

Best Use Cases

  • Home and SOHO NAS builders: Ideal for users setting up a file server or media server at home or in a small office. The 8TB capacity is sufficient for photos, videos, and documents, while CMR ensures RAID stability.
  • RAID array users: If you plan to use RAID 5 or 6, the CMR technology prevents the severe performance degradation seen with SMR drives during rebuilds. This drive is a safe choice for parity-based arrays.
  • Long-term archival storage: The low spindle speed keeps power consumption and heat in check, making it suitable for 24/7 backup drives.
    Not recommended for:
  • Users needing fast read/write speeds: Sequential throughput is around 200 MB/s — far slower than any SSD. Not suitable as a boot drive or for game installations.
  • Ultra-low-power builds: 2.5-inch HDDs or SSDs consume less power.
  • High-load enterprise environments: The 180TB/year workload rating is for small-to-medium NAS; large data centers should consider WD Gold or Ultrastar.

Things to Consider

While this drive uses CMR, not all WD Red Plus models do — some larger capacities (e.g., 12TB and above) may use SMR. Always verify the model number (WD80EFBX for this 8TB version) before purchase.
If used in a desktop PC, it's best for data storage rather than as a boot drive. An SSD is still recommended for the operating system.
Competitors include Seagate IronWolf (CMR models) and Toshiba N300 series. The WD Red Plus is particularly well-regarded for RAID stability, though it tends to be slightly pricier.

FAQ

Q: Can I install this HDD in a PS5 or Xbox Series X?
A: No. Those consoles use M.2 NVMe SSDs for internal storage. This 3.5-inch HDD can be used externally via a USB enclosure, but it won't provide fast game loading.
Q: What's the difference between WD Red Plus and standard WD Red?
A: WD Red Plus uses CMR, offering better RAID rebuild performance. Standard WD Red uses SMR, which can cause slowdowns during array reconstruction. For RAID use, choose the Plus.
Q: Does this drive work with macOS?
A: Yes, it's recognized as a standard SATA drive. You'll need to format it with APFS or HFS+. For NAS use, the NAS handles the file system (e.g., ext4, Btrfs), so compatibility is not an issue.

Product Disclosure (Amazon)

  • Manufacturer: ウエスタンデジタル(Western Digital)
  • Seller: P-LAB
  • Fulfilled by: P-LAB
  • ASIN: B0BNJJVFV6
  • Note: This article covers a manufacturer-made product based on Amazon listing details.