PCI Express USB 3.0 19 Pin Expansion Card PCIE 1x to 2 Ports USB 3 19 Pin Adapter Internal USB3 20Pin Hub Header for Windows PC The back of the card is equipped with two USB3.0 19pin pin headers. If the front of the chassis has a USB3.0 interface, you can directly connect to this port, if the chassis does not have a 3.0 interface , You need to work with the front panel. PCI-E to USB 3.0 card allows you to extend 4 USB 3.0 ports to your desktop PC using the two internal 19-pin USB3.0 ports. 1. The high-quality fixed baffle is used to fix the expansion card in the chassis. And these baffles, treated with flex hardening on both sides, can withstand higher force. 2.Gold-Plated PCI-E x1 Interface: Thick gold-plated PCI-E interface for more stable contact and transmission. It is not prone to data distortion. 3.High-quality main control IC can eliminate interference to the greatest extent and greatly improve stability Product name:PCIE 19 Pin 20 pin USB 3.0 Adapter Chip: LV805 Input interface: PCI Express Output Interface: USB3.0 Number of interfaces: 2 ports USB3.0 Power supply: No additional power supply required Transmission speed: up to 5Gbps Compatible interface: PCIe x1 x4 x6 x8 x16 slot Incompatible interface: PCI slot Supported systems: Windows XP/Vita/win7/win8/win10 color: As shown Material: PC+Metal Package Contents: 1 x PCIE 19 Pin 20 pin USB 3.0 Adapter (Due to different product batches, the appearance may be different, which does not affect use.) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.