Features: Material: Aluminum alloy + ABS Support hard disk type: 3.5 inch Serial ATA mechanical hard disk and solid state hard disk Internal interface: SATA Transmission interface: USB3.0 Compatible operating system: For Windows 98/SE/ME/2000/XP/Vista/ Win7/win8/Win10 Mac OS 8.6 or the latest version Theoretical transmission speed up to: 480Mbps Aluminum casing for better heat dispersion Adapter input: 100-240V 50-60Hz 0.5A Adapter output: 12V 2A. Specification: Size: 185*110*30mm/7.28*4.33*1.18in Weight: 193g