Features: Supports PCIe1x to USB3.1 TypeC and USB3.0 to meet different device connection needs. Forward and reverse Plugging design: USB3.0 A can be used forward and reverse, which is easy to use and provides a more flexibled connection experience. Fast speed transmission: USB3.1 TypeC supports high-speed data transmission, providing a fast and stable connection experience. Strong Stability: Highly quality materials to ensures stable data transmission. For desktop pc upgrades: Used to upgrades the USB port of desktop PC by adding TypeC and USB3.0 for easy connection of external devices. Specifications: Item USB3.0/3.1 PCIE Adapter Size:about 14x10cm/5.51x3.94in Interfaces Type: PCIE 1X Applicable models: conventional desktop computer Interfaces quantity: USB3.1 TypeC x1, USB3.0 TypeA x1 Chip used: VL805 External power supply port: 15PIN Requirements: Available PCIE 1x/4x/8x/16x slots. Package Includes: 1Set PCIe 1x to USB3.1 TypeC Expansion Card note: Due to the problemsof lighting effectsand shootingangles, there will be tolerances in product, please understand. Please allow 0-1cm error due to manual measurment