1. Compatible with USB 2.0 USB 1.1 device; 2. Data Transfer up to 3Gbps; 3. Hidden in the laptop for any ESATA ports; Product Name: Super speed Laptop 54mm Express Card to USB 3.0 & eSATA Adapter 3Gbps (1). Features: Conform to PCI-Express/54 standard Make full use of Express speed; Support plug-play hot-swap Support MS Windows98SE/ Me/Sever 2003/xp64bit/Vista/Win7 operation system; Support for Bluetooth printing without wire earphone Support NCQ technology and PM function with FIS based switching; Transfer rate up to 3.0Gbps; Compatible with standard 54mm Express Card slot. Compatible with USB 2.0 USB 1.1 device. All interfaces are compatible with transfer specification (2) System Requirement Hardware: Computer with Express card slot Windows 2000/Server 2003/XP/Vista/Server 2008/7 (32-bit and 64-bit) CD: http://m5.img.dxcdn.com/CDDriver/CD/sku.309056.zip