# WD Red Plus WD20EFPX — 2TB NAS Hard Drive with CMR Technology

> ウエスタンデジタル WD Red Plus 2TB NAS用HDD summary. The WD20EFPX (WD Red Plus 2TB) is a CMR-based NAS hard drive with 5400 RPM, 64MB cache, and SATA 6Gb/s. Ideal for RAID setups in home and small-office NAS.

Tags: nas, hdd, 2tb, wd red plus, cmr, 3.5インチ
Source: https://www.amazon.co.jp/dp/B0C4X31Q9F
Article page: https://web-autoai.com/articles/wd-red-plus-2tb-nashdd?lang=en

Prices and ratings change over time — check the article page for the current values.

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This article covers ウエスタンデジタル WD Red Plus 2TB NAS用HDD.
Western Digital's WD Red Plus series is purpose-built for NAS environments, and the WD20EFPX 2TB model is one of the most popular choices for home and small-office users. This 3.5-inch internal hard drive spins at 5400 RPM and packs a 64MB cache. Unlike the entry-level WD Red (which uses SMR), the Red Plus employs CMR (Conventional Magnetic Recording) technology, ensuring consistent random write performance even under multi-user loads. It strikes a solid balance between reliability and cost, making it a mid-range workhorse for RAID arrays.
The WD20EFPX uses the standard SATA 6Gb/s interface and a 3.5-inch form factor, fitting into almost any NAS chassis or desktop PC with available drive bays. Power is supplied via a standard SATA power connector. It works out of the box with major NAS operating systems (Synology DSM, QNAP QTS, TrueNAS, etc. ) without additional drivers. If you plan to install it in a PC case with 2.5-inch bays only, you will need a mounting adapter. No special cooling is required, but decent airflow around the drive is recommended for long-term stability.
This is the Western Digital WD Red Plus 2TB (model WD20EFPX), released as part of the ongoing Red Plus lineup. It carries a 3-year limited warranty and is rated for 550 TB per year workload. Check the retailer's page for the latest price. It sits in the mid-range tier of NAS hard drives – more reliable than the SMR-based WD Red, but more affordable than the 7200 RPM Red Pro or enterprise-class WD Gold drives.
Home NAS / Small Office NAS: Ideal for RAID 1, RAID 5, or RAID 6 configurations where write consistency is critical. With CMR technology, you won't experience write speed drops during rebuilds or heavy simultaneous access. Reliable Data Archiving: If you need a dependable drive for backups and long-term storage, the Red Plus's CMR design reduces the risk of read errors over time compared to SMR drives. * Budget-Conscious Builders: Users who want proven reliability without paying enterprise premiums. The Red Plus delivers excellent value for everyday NAS operations.

## Things to Consider
The 5400 RPM spindle speed means sequential transfer rates are lower than 7200 RPM drives. For users who frequently move large media files (e. g. , 4K video editors), a Red Pro or Gold series would be faster. The 2TB capacity may feel limited in 2026; consider whether your storage needs may quickly outgrow this size. Also, this drive is not recommended as a boot disk – use an SSD for your operating system. If you are building a new RAID array, purchase drives from the same batch or at least the same model for consistent performance.