Monoprice 10058 5.25" to 4x2.5" SAS/SATA 6Gb/s Hot-Swap Aluminum HDD Cage w/Key Lock Aluminum frame for light weight and superior heat dissipation. Supports SAS I; SAS II; SATA I; SATA II; and SATA III drives. Provides up to 6.0 Gbps data transfer rate. Supports 2.5 in. drives up to 15 mm. thick. Converts a single 5.25 in. drive bay to four 2.5 in. drive bays.