The PE4H is designed for Notebook PCs that converts PCI Express 16X Add-on Card to ExCard or mPCIe or PCIe 1x connecter.This adapter allows you to use your existing PCI-E 16X Card in the notebook PC for test.PE4H-EC2C allows user to test PCI Express Add-in-Card on the ExpressCard slot. System Requirements Running Windows 7, XP (Not compatible with Apple Computers)- Linux- ExpressCard slot on notebook- Power Supply (ATX or DC power units)- PCIe Video Card (PCIe 1.0, 2.0, or 2.1) Notice:1) PE4H is PCIe 1x bandwidth limit passive adapter in compliance with Expresscard and mPCIe specification.2) PE4H design for engineering test. NOT for home or office use.3) Basically, PCIe add-on card designed for desktop. We can"t guarantee it compatibility with your laptop. Depends on OS version, notebook"s BIOS, device driver,4) Almost PCIe 16x video card can"t get enough memory resource are allocated. Can"t work in your laptop.5) For more graphics cards experiences. Please visit web-site here.