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. Take advantage of the lightening speed of USB 3.0 to quickly transfer files up to 5 Gbps! Connect any 2.5'' Serial ATA (SATA) / SSD or SATA II Hard Drive to your computer through an available USB 3.0 port on your desktop or laptop. Reverse compatible with USB 2.0 and 1.1, this Adapter is a perfect solution for data transfers or data backup!