Description: This PCI-E to USB riser card is designed with 4 USB ports that support USB 3.0, providing fast data transfer. The PCI-E to USB expansion card can be used on many types of computer operating systems and is easy to install and remove. The 4-port PCI-E to USB 3.0 is designed with a PCI-E X1 bus interface, powered by a PCI-E interface, making the power supply stable and secure. The PCI-E 1 to 4 adapter has an LED indicator light, making it more convenient to view the card's working status. The PCI-E to USB adapter has 4 USB ports, allowing you to connect to 4 PCI-E riser cards and is practical to use. Specification: Name: PCI-E 1 to 4 riser card Size: 65x58x120mm Model: LPE-61X Interface: PCI-E USB3.0 Compatible System: Supports WINXP, WIN7, WIN8, WIN10, LINUX DOS Notes: -Due to the shortage of raw materials produced by the original factory and different production batches, the card slot and cable color will be different, but the card has the same function, please rest assured that it does not affect normal use, and we hope for your understanding (color will be sent randomly). -Manual measurement of size may have a small error. -Due to different monitor settings, color deviation may vary, please understand. Packing List: Package Includes 1: 1 * 1 to 4 PCI-E adapter card Or Package Includes 2: 4 * PCI-E 16X adapter, 1 * 1 to 4 PCI-E adapter card, 4 * USB 3.0 cable, 4 * SATA 15Pin-6Pin power cable.