1. Exceptional Durability: The 19-pin expansion card boasts reliable anti-oxidation capabilities, excellent conductivity, and superior wear resistance. 2. Advanced 4-Layer PCB: Utilizes a 4-layer circuit board, ensuring robust anti-interference performance for stable operation. 3. High-Speed Transmission: Guarantees stable PCIE high-speed signal transmission, data integrity, and impedance matching for optimal performance. 4. Enhanced Stability: The bottom of the Type-C 19-pin expansion card has been reinforced to prevent deformation, ensuring long-term reliability. 5. Broad Compatibility: Compatible with USB 3.1 and lower versions, supporting Win XP, Vista, Win7 (drivers required), Win 8, and Win10 systems. Drivers are included for convenience. Item Type: 19 Pin Expansion Card Material: PCB Input Interface: M.2 M-Key Compatible: USB 3.1 and lower Compatible Systems: For Win XP, for Vista, for Win7 (drivers must be installed), for Win 8, for Win10 systems. Comes with drivers. Transmission Speed: 5Gb Package Includes: 1 x 19 Pin Expansion Card 1 x Screwdriver 1 x Screw 1 x 4-Pin Cable