Western Digital WD120EFBX Hard Drive, Buffer 512 MB, Wireless LAN No, Product Family Red Plus, Drive Interface SATA, Drive Interface Standard SATA/600, Spindle Speed (rpm) 7200, Drive Type Internal, Form Factor 3.5", Storage Capacity 12 TB, Environmentally Friendly Yes, Environmental Certification RoHS, Endurance (TBW) 180 TB. 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.