
WD Red Plus WD40EFRX 4TB 3.5" Internal SATA (SATA/600) Hard Drive
Best price now
57% under what the other stores charge
Compared across 15 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.

57% under what the other stores charge
Compared across 15 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.
It checks today's price at every store, compares the alternatives and answers in about a minute.
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Lowest price we've seen: $143.16 on Nov 12 at eBay. Tracked across 14 stores since Nov 12.
General Information Tackle Intensity with WD Red™ Plus Packed with power to handle the small- to medium-sized business NAS environments and increased workloads for SOHO customers, WD Red™ Plus is ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems. Built and tested for up to 8-bay NAS systems, these drives give you the flexibility, versatility, and confidence in storing and sharing your precious home and work files. For Small or Medium Businesses Stream, backup, share, and organize your digital content with a NAS and WD Red™ Plus drives designed to effortlessly share content with the devices at your home or business. NASware™ 3.0 technology increases your drives' compatibility with your existing network and devices. For larger businesses with up to 24 bays, count on WD Red™ Pro drives to deliver exceptional performance. Exclusive NASware 3.0 Not just any drive will do. Get up to 112TB of capacity in your 8-bay NAS system and with Western Digital's exclusive NASware 3.0 technology, you can optimize each and every drive. Built into every WD Red™ Plus hard drive, NASware 3.0's advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability. Built for Optimum NAS Compatibility WD Red™ Plus drives with NASware™ technology takes the guesswork out of selecting a drive. Optimized for NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, a WD Red™ Plus drive is one of the most compatible drives available for NAS enclosures. But don't take our word for it. WD Red™ PLUS drives are a reflection of extensive NAS partner technology engagement and compatibility-testing. WD Red™ Pro for Big Business If you're looking for heavy duty performance for NAS, WD Red™ Pro drives deliver exceptional performance for the medium to large business customer with extreme demands. For NAS environments with 9 to 24 bays, WD Red™ Pro drives deliver uncompromising performance and unwavering assurance backed by a 5-year limited warranty. Technical Information Storage Capacity: 4 TB Features: IntelliPower Drive Performance Maximum External Data Transfer Rate: 6144 MB/s (48 Gbit/s) Spindle Speed (rpm): 5400 Buffer: 64 MB Endurance (TBW): 180 TB Network & Communication Wireless LAN: No Interfaces/Ports Drive Interface: SATA Drive Interface Standard: SATA/600 Power Description Operating Power Consumption: 4.50 W Physical Characteristics Drive Type: Internal Form Factor: 3.5" Height: 1" Width: 4" Depth: 5.8" Weight (Approximate): 1.50 lb Miscellaneous Device Supported: Storage System Environmentally Friendly: Yes Environmental Compliance: China Restriction of Hazardous Substances (China RoHS) Environmental Compliance: Restriction of Hazardous Substances (RoHS) Environmental Compliance: Waste Electrical and Electronic Equipment Directive (WEEE)








