Western Digital WD40EFRX-68WT0N0 4TB 3.5" 6Gb/s 64MB 5.4K SATA HDD P/N: WD40EFRX
This page is affiliate-supported. Prices and availability can change after the last marketplace refresh.
About this product
The Western Digital WD40EFRX-68WT0N0 is a 4TB 3.5-inch SATA HDD, part of the WD Red product line, specifically designed for NAS systems. It operates at 5400 RPM with a 64MB cache and uses a 6Gb/s SATA interface. This drive is compatible with Memory Vault systems and comes in a silver color, intended for reliable, always-on operation in multi-drive environments.
Our take
If you're building or upgrading a NAS, this Western Digital WD Red drive, model WD40EFRX, is a solid candidate. The 4TB capacity is generous for network storage, and the 5400 RPM spin speed, while not top-tier for performance, is often preferred for NAS environments for its power efficiency and quieter operation over long periods. The 64MB cache and 6Gb/s SATA interface provide a good balance for data throughput. It's designed for reliability in continuous operation, which is critical for NAS. Just remember that it's a 3.5-inch drive, so it's not for smaller, portable enclosures.
Pros & Cons
Pros
- 4TB storage capacity
- WD Red product line for NAS
- 64MB cache for data handling
- SATA 6Gb/s interface
- 3.5-inch form factor
Cons
- 5400 RPM slower than some drives
- Not suited for portable use
Specifications
- Compatible With Memory Vault
- Color Silver
- MPN WD40EFRX
- Rotation Speed 5400 RPM
- Brand Western Digital
- Form Factor 3.5 in
Show all 13 specifications
- Type
- SATA Drive
- Drive Type(s) Supported
- HDD
- Model
- WD40EFRX-68WT0N0
- Storage Capacity
- 4 TB
- Interface
- SATA
- Cache
- 64 MB
- Product Line
- WD Red
