iStarUSA BPN-DE230SS-RED Red Color 2x5.25 to 3x3.5 SAS/SATA Trayless Hot-Swap Cage Aluminum Frame&#44; designed for heavy-duty purpose. Support SAS I/II&#44; SATA I/II/III Hard Drives. Data Transfer Rate up to 6.0 Gb/s. Integrative shaping aluminum design for quickest heat sink. Aluminum front bezel with metal key lock mechanism for double safety.