The SABRENT EC DFFN SATA Lay Flat Docking Station supports the direct insertion of Desktop 2.5"/3.5" SATA Hard Drives. It is a caseless solution that makes swapping hard drives easier than ever before. Plus, now you can take advantage of the lightnning speed of USB 3.0 to quickly transfer files up to 5 Gbps! Keep your drives running cool, with Built in cooling fan The docking station features a built in cooling fan that provides increased reliability and lifespan to HDDs by keeping the drives cooler. The SABRENT (CB 303W) High performance USB 3.0 extension cable extends the connection between a computer or Windows tablet and both USB 3.0 and USB 2.0 peripherals including hard drives, USB hubs, mice, keyboards, flash drives, printers, and more. Upgrade to SuperSpeed USB 3.0 and Future Proof your data transfer rate while maintaining backward compatibility with your existing USB 2.0 devices. Enjoy SuperSpeed USB 3.0 data transfer rate at up to 5 Gaps, 10X faster than USB 2.0. Features: Shielding that provides protection against noise from electromagnetic and radio frequency signals, keeping your signal clear with less loss of bandwidth for higher performance.