1. This is a PCI-Express card 8 * High-speed USB 3.0 interface expands when you need to use multiple external USB products at the same time, this Express card be the . 2. ConformsTo PCI Express standard version 3.0. 3. USB 3.0 interface mission rate could reach 5Gbps, downward compatible with USB 2.0 / 1.1. 4. A USB device to be connected simultaneously 7port. 5. Supports 7/8/10/11. Interface specification: USB3.2 Gen1 *8 Interface rate: 5Gbps Interface speed: about 390MB/S Bus specification: PCI-E 3.0x2 Bus rate: 16Gbps Installation conditions: free PCI-E X4.X8,X16, slot Note:Due to different production batches, there are differences in printing/appearance, which does not affect use. Colour:Green Material:PCB+Metal Package Contents: 1 * USB 3.0 Expansion Card 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.