Features: 1.Reliable Metal: This 2.5in internal HDD enclosure adopts aluminium alloy and stainless steel material, providing excellent cooling. Key lock feature keeps your data safe. 2.Support SATA I/II/III: This internal SATA hard drive rack supports SATA I/II/III, providing maximum 6Gbps high speed. 3.For 5.25in Floppy Drive Bay: This SATA HDD mounting bracket is suitable for 5.25in floppy drive bay. Designed to provide trouble free insertion, reliable connection and provide easy mobility for your hard drives. 4.Widely Compatible: This internal HDD mobile rack with hot swap is compatible with all 2.5 drive format, whether it's mechanical SATA drive or SSD. 5.Easy Installation: This 2.5 inch SATA HDD mobile rack with trayless design can be easily installed without tools. Only supports 7 to 9.5mm hard disk thickness. specification:Item Type: 2.5" Internal HDD Enclosure Material: Aluminium Alloy, Stainless Steel Transfer Interface: Supports SATA I/II/III Applicable Hard Disk: Suitable for 2.5in SDD / HDD Number of Connected Hard Disks: 2 Transfer Rate: Up to 6Gbps (Depending on Hard Disk Speed) Maximum Hard Disk Height: 9.5mm Hard Disk Capacity: Unlimited Applicable Device Space: Can be Mounted on 5.25in Floppy Drive Bay System Requirements: For Win, for OS X PackageList:1 x 2.5" Internal HDD Enclosure 2 xSATAData Cable 2x PowerCord 4 x Screws 2 x Keys 1 x User Manual