WD Red Plus 8TB 3.5-inch NAS Hard Drive (WD80EFBX) - Capacity: 8 TB, Interface: SATA, Cache Size: 256 MB, Disk Speed (RPM): 7200rpm, Compatibility: Designed with CMR technology for small or medium-sized businesses in RAID-optimized NAS systems with up to 8 bays. Perfect for handling increased workloads, including expanded OS compatibility and ZFS.