Complies with PCI Express version 2.0 standard. Complies with Universal Serial Bus 3.0 Standard. The transmission speed of USB 3.0 interface could reach 5Gbps, backward compatible with USB 2.0 / 1.1. A USB device to simultaneously connect 7tlg. The USB interface could provide 5V 2A power supply to external device. With two power modules, you don't need extra power source. Compatible with Linux / XP / 7/8 / 8.1 / 10 and Certified 32-bit or 64-bit WHQL driver Model Number: PD35 Type: Additional Cards colour: As shown Material: PC+metal Package Contents: 4 x controller converter(VIA Chip) 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. The transmission speed of USB 3.0 interface could reach 5Gbps, backward compatible with USB 2.0 / 1.1. Compatible with Linux / XP / 7/8 / 8.1 / 10 and Certified 32-bit or 64-bit WHQL driver With two power modules, you don't need extra power source. Complies with PCI Express version 2.0 standard. Complies with Universal Serial Bus 3.0 Standard. A USB device to simultaneously connect 7tlg. The USB interface could provide 5V 2A power supply to external device.