Specification: Certification: NONE Origin: Mainland China Type: Cable Adapter Model Number: Conversion Plug Package: Yes Package: Yes Color: Black Model: PH73A/PH73B (optional) Transmission speed: USB3.1Gen2 up to 10Gbps (depending on the host end transmission speed) How to choose A/B model: On the motherboard, the notch of the 19Pin seat faces outward, so choose option A. On the motherboard, the 19Pin seat has an inward notch, so choose the B model. Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 x Conversion Plug 1. Support Interface: The Converter Plug supports all motherboard USB3.0/3.1 (19Pin) interfaces. 2. Access Port: The Front Panel Adapter can be connected to the USB Type C output terminal of the front I/O panel. 3. Interface Conversion: USB3.0 internal 19Pin Front Panel Adapter connected to USB3.1/3.2 internal Type-C 20 Pin adapter. 4. Internal: The internal 20Pin (Key A) adapter supports (Gen2 Gen1), USB3.0, USB2.0, and USB1.1 devices. 5. No Need to Install Driver: No need to install driver, easy to expand motherboard functions, and does not waste the Type C interface of the chassis.