Athena Power BP-TLA2131SACĂ‚Â 3.5 HDD Trayless Hot-Swap Backplane Module Converts 2 X 5.25 to 3 X 3.5 SAS/SATA 6Gb/s HDD - Aluminum Cage & Tray w/ Security Keylock, 70mm Fan & LED Indicators Type: Other Specifications: Product Category: Internal Product Sub Category: SATA/SAS Interface Form Factor: 2 x 5.25 Interface: SATA/SAS Interface Plug and Play: Plug and Play Trayless Design: Trayless Design Supported HDD Size: Up to 3 x 3.5 HDD Hot-Swappable: Hot-Swappable Cage Color: Black Cooling Fan: 70mm Material: Aluminum Body & Front Bezel Power Connector: SATA 15 Pin x 2 HDD Connection: SATA 7 Pin Data x 3 Transfer Rate: Up to 6Gb/s (SATA III/ SAS II) RoHS Ready: RoHS Ready Door & Lock: Metal triangle key lock on each HDD carrier