This PCI-E to USB riser card is designed with 4 USB ports supporting USB 3.0, which can provide fast data transmission. The PCI-E to USB expansion card can be used on many types of computer operating systems and is convenient to install and remove. The 4 ports PCI-E to USB 3.0 is designed with PCI-E X1 bus interface, it is powered by PCI-E interface, which makes the power supply stable and secure. The PCI-E 1 to 4 adapter has an LED indicator that makes it easier to see the working status of the card. The PCI-E to USB adapter has 4 USB ports which allow you to connect with 4 PCI-E riser cards and is convenient to use. Name: PCI-E 1 to 4 riser card Model: LPE-61X Interface: PCI-E USB3.0 Compatible system: Support 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 will not affect the normal use and hope to understand ! Color: random color, don't accept the specified color Material: PCB Size: 6.5x5.8x12cm Package Contents: 4 * PCI-E 16X adapter 1 * 1 to 4 PCI-E adapter card 4 * USB 3.0 cable 4 * 15Pin-6Pin SATA Power Cord Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The allowable measurement error is +/- 1-3 cm.