AMS Venus Mobile Rack DS-524SSBK 2.5" x 4 SATA Backplane drive Cage Hot Swap Removable Hard Drive Kits SAS/SSD/SATA RAID Ready Form Factor: 1 x 5.25" Bay for 4 x 2.5" SAS & SATA HDD Host Interface: SATA I/II/III Capacity: up to 2TB Per Bay, Aluminum Chassis Disk Interface: SATA HDD/SSD/SAS Compatible to 9.5mm and 12.5mm drive height;