??Size-25CM , Material-Plastic, metal, electronic component. ??4 USB 2.0 Female Port to Dual 9 Pin Female Connector Adapter Bracket for Motherboard. ??Also allows you to connect internal USB devices directly to the motherboard header connection. ??4 Port USB Slot Plate. USB slot plate adapter converts the USB pins on your motherboard into four USB-A female ports. ??Up to 480 mbps USB 2.0 standard data transferring speed. ??Impedance matched twisted pair construction to minimize cross talk, ensuring high speed, error-free transmission.