Features: This expansion card provides additional Type-E, Type-C, and 19/20-pin interfaces, effortlessly extending device connectivity. Supporting the USB3.0 with theoretical transfer speeds of up to 5Gbps, it delivers ‘instantaneous response’ for file transfers, data backups, and interactions. Compatibles MKEY interfaces, it suits multiple motherboard types, resolves compatibility issues across different motherboard interfaces. Compatibles domestic systems, it meets the needs of users with high information security requirements. Not Require additional driver; simply insert into the PCIe slot for immediate activation, with not require complex setups. Specifications: Size: 80x22mm/3.150.87in Input : MKEY Support USB3.0 5Gbps Usage scenario: Suitable for desktop computer users who need additional USB interfaces, Package Includes: 1PC Expansion card note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.