Features: 100% brand new and high quality Designed with 4 USB ports: This PCI-E to USB riser board is designed with 4 USB ports that support USB 3.0, which can provide high-speed data transfer. Can be used in many kinds of computer operating system: The PCI-E to USB Extender Card can be used in many kinds of computer operating system, and it is easy to install and remove. Designed with a PCI-E X1 bus interface: The 4-port PCI-e USB 3.0 is designed with a PCI-E X1 bus interface, it is powered by a PCI-E interface, which makes the power supply is stable and safe. LED light: The PCI-E 1 to 4 adapter has an LED light that makes it more convenient to check the working status of the board. 4 USB ports: The PCI-E to USB adapter has 4 USB ports that can connect to 4 PCI-E riser boards and is convenient to use. Package Includes: 1PC x PCI-E Riser Card Specifications: Bus interface: PCI-E x 1(compatible with 4x, 8x, 16x/graphic card interface) Interface: PCI-E USB3.0 interface Size: approx. 120x68x58mm/4.72x2.68x2.28in Compatible System: Compatible with WINXP, WIN7, WIN8, WIN10, LINUX DOS note: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from actual item.