G-Technology G-SPEED eS PRO High-Performance Fail-Safe RAID Solution for HD/2K Production 12TB (0G02057) Drive capacity - 12 TB Interfaces/ports - Serial ATA/300, mini-SAS No. of expansion bays - 4 Dimensions - 6 1/2(H) x 4.9(W) x 8.3(D) Drive type - SATA II