ABS Material USB 3.0 to Adapter /USB 3.0 to eSATA Converter Connectors with JM539 Chipset Hot Swappable Features: Transfer rate of Super-Speed USB 3.0 interface can be up to 3Gbps; Supports Hot-Swapping and Plugs and Play function; Compliance with Serials ATA Specification Revision2.6; Backward compatible previous versions of USB ports (USB1.0, USB1.1&USB2.0) & hard disks 1.5Gbps driver installation required; Need 5V power for 2.5inch Hard Disk;Need 12V 2A power for 3.5inch Hard Disk; Specifications: Material:ABS Option Type:USB 3.0 to Adapter,USB 3.0 to eSATA Adapter; Speed:Up to 3Gbps; Chip:JM539 Compatible for win98/ME/2000/XP/Vista/win7 system; Package Includes: 1xUSB 3.0 to Adapter note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.