Welcome to the store! Features: - Uses an imported AS3142 chip, ensuring stability, high performance, and broad compatibility. - Comes with a 4A power supply to power the chip; no external power supply needed. - Features overcurrent and overvoltage protection to safeguard your motherboard. - All solid-state capacitors, unaffected by harsh environments. - USB3.1 PCI Express card for laptops; compatible interfaces: PCI-E 4X, PCI-E 8X, PCI-E 16X (Note: PCI-E 1X slot is not supported). Specifications: - Item: 7-Port USB3.2/3.1 PCIE Expansion Card for Desktop - Expansion Interface: USB3.1 PCIE Type-C x 2 + Type-A x 5 - Product Chip: ASM3142 + VL822 - Transfer Speed Up To: 10Gbps Max - Backward Compatible with USB 1.1/USB 2.0/USB 3.0 - Supports PCI Low Profile - Size: Approx. 120x90mm/4.72x3.54in - Color: Black - System Requirements: For Windows 2000/XP/Vista/7/10 Note: - There may be 1-2 cm errors in size due to manual measurement. - Color deviation may differ due to different monitor settings, please understand. Package Includes: - 1 x PCIE USB3.1 Expansion Card - 1 x Driver CD - 1 x Manual Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately, and we will provide you with the best solution!