Features: USB 3.0 PCI-e Card provides 7x external USB 3.0 ports via PCI-e x1/x4/x8/x16 for your PC, to connect external Hard Drives, CD/DVD drives, printers, scanners, webcams, and any other USB Devices Hardware Requirement - 1x Available PCI-e x1/x4/x8/x16 Slot on Motherboard; No power required Transfer Speed - Up to 5Gbps, 10x faster than USB 2.0, you may save time to transfer larger files, such as HD movies, photos, Lossless music Wide Compatibility - It's coming with 2x Renesas chipsets, ensure it's wide compatible with motherboards which already with other USB 3.0 chipset, and Backwards compatible with USB 2.0 / 1.0 devices; Support Windows 10/ 8/ 7/ Vista/ XP, Lunix Package Including - 1x 7Port USB 3.0 PCI-e Expansion Card; 1x CD Driver; 2x Screws 7 ports USB 3.0 Expansion Card Add 7 ports USB 3.0 on the desktop via PCI Express slot, the port has a maximum data transmission speed of 5Gbps to achieve a fast connection Hardware Requirement 1x Available PCI-e x1, x4, x8 or x16 PCI Express slot System Compatibility Compatible with : Windows XP/7/8/10/11 Operating system, Lunix and Mac OS 10.8.2 above Chipsets Renesas D720201+ D720210 Package Including 1x PCI-e x1 to 7Port USB 3.0 Expansion Card 1x CD Driver Screws