Features: Advanced chip, stable and high performance and high compatibility. Supports USB 3.0 specfication typeA Connector X 2ports and Type-C x3 Ports. Adopt over-current and over-voltage for protection to protect your motherboard with great for protection All solid-state capacitors, not affected by harsh environments. USB3.0 PCI for Express card for laptop,applicable interface: PCI-E4X, PCI-E8X, PCI-E16X (Note: PCI E 1X slot is not supported) Specifications: Item: 7 Ports USB3.0 PCIE Expansion Card for Desktop Expansion interface: USB3.0x2 Type-C x 3 Product chip: ASM3142+VL822 Transferring Speed up to: 5Gbps Max Support low speed (1.5Mpps)/full speed (12Mbps)/high speed transmission (480Mbps)/ultra-high speed (5Gbps) Backward compatible to USB 1.1/USB 2.0./USB3.0 Size approx : mixed Color: Black System Requirements: for WindowsXP/7/10/8/8.1/-linux Note: There might be 1-2 for cm error of size for manual measurement. The color's deviation might differ due to different monitor settings, please kindly understand. Package includes: 1PC x Pcie Usb3.1 Expansion Card 1PC x Manual