WD Red Plus internal HDDs are designed to handle workloads for power users and small to medium business NAS environments. WD Red Plus drives deliver the speed and capacity required to store, protect and share growing amounts of data in mid-sized RAID-optimized NAS systems with increased power efficiency. The WD Red Plus hard drive gives you the flexibility, versatility and confidence in storing and sharing your precious personal and business files. You can count on the WD Red Plus drive to deliver exceptional performance. Features: Packed with power to handle small to medium sized business NAS environments; Conventional Magnetic Recording technology; Built and tested for up to 8-bay NAS systems; Engineered to tackle 24x7 environments; NASware 3.0 technology increases compatibility with your existing network and devices; Optimised for NAS systems, the unique algorithm balances performance and reliability in NAS and RAID environments; Ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems; 3D Active Balance.