Features: 1.High Speed: This internal SATA hard drive rack supports SATA I/II/III and can deliver up to 6Gbps for best performance. 2.Hot Swap: The 2.5 trayless mobile rack can be installed on the 3.5 inch floppy disk drive bay of the computer chassis. Provide trouble free insertion, secure connections and easy mobility for your hard drives. 3.Strong Material: This SATA HDD mounting bracket adopts aluminium alloy and stainless steel, not only help maintain ideal drive operating temperatures, but also provide excellent cooling. 4.Trayless Design: This HDD internal SATA mobile rack is fully compatible with all 2.5in drive format, allow you to access your data quickly and easily. Also feature a trayless design that allows quick installation and removal of hard drives without tools or screws. 5.Wide Application: This internal HDD mobile rack is ideal for server computers, clouds computing storage, desktop PC, media backup, security systems, etc. Note: This HDD mobile rack supports 7 to 9.5mm hard disk thickness. specification:Item Type: Internal SATA Hard Drive Rack Material: Aluminium Alloy, Stainless Steel Transfer Interface: Supports SATA I/II/III Hard Disk: 2.5 Inch 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: Computer Case Floppy Disk Drive Carrier System Requirements: For Win, for OS X PackageList:1 x InternalSATAHardDriveRack 2 x Power Cord 2 x SATA Data Cable 4 x Screw 2 x Key 2 x Sticker 1 x User Manual