Western Digital WD Red Plus 4TB 3.5′ NAS HDD SATA III NAS Hard Drive 5400 RPM 256MB Cache 180MB/S 1mil Hours MTBF 180TB/Year (WD40EFPX) | WD40EFPX

Western Digital WD Red Plus 4TB 3.5′ NAS HDD SATA III NAS Hard Drive 5400 RPM 256MB Cache 180MB/S 1mil Hours MTBF 180TB/Year (WD40EFPX)

· Supports NAS systems with up to 8 bays
· Supports up to 180TB/year workload rate
· NASware firmware for compatibility
· Built for small or medium business NAS systems in a 24/7 environment
· Thrives in 24/7 Environments

Tackle Intensity with WD Red Plus

Packed with the power to handle the small- to medium-sized business NAS environments and increased workloads1 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 flexibility, versatility, and confidence in storing and sharing your precious home and work files.

Product Last Updated: 23/11/2025

* Whilst we endevour to have the correct information on our products provided from the supplier/manufacturer errors do occur. If you would like to double check the information, please feel free to contact us and we will be more than happy to confirm information on the item prior to purchase. In the event that product information is incorrect due to information we received from our supplier or manufacturer, we do not take responsibility or be held liable for damage(s) or loss(s). We will work with you and do our best to make the best of a bad situation and work with our supplier(s) and/or manufacturer(s) to supply the correct information for the item purchased etc..