This device allows you to connect a SATA 3.5"; or 2.5"; hard drive into a USB port. Great for any computer, but even better for a notebook without any physical means to install one. It creates a plug and play compatible method to access any compatible hard drive. USB 3.0 ready for fast data transfer data but also backward compatible with USB 2.0 for older systems. Specifications: Transfer Rate: USB 3.0(Max 5Gbps), USB 2.0 (Max. 480Mbps) Power: 12V, 2.5A Compatibility: Windows 2000/XP/Vista/7/8/8.1/10+. macOS(R) 10+