Western Digital WD30EFZX Hard Drive, Buffer 128 MB, Wireless LAN No, Product Family Red Plus, Drive Interface SATA, Drive Interface Standard SATA/600, Spindle Speed (rpm) 5400, Drive Type Internal, Form Factor 3.5", Device Supported Storage System, Storage Capacity 3 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.