1,Vertical switching, small size, no interference in other positions. Multi‑layer circuit board, integrated differential signal optimization technology, possess stable signal, strong anti‑interference ability 2,Support all motherboard USB3.0/3.1 (19PIN) interfaces, no driver installation required 3,For Intel internal 20-PIN connector can be connected to the USB TYPE-C output of the front I/O panel 4,USB3.0 internal 19PIN connection to USB3.1/3.2 internal TYPE-C 20 PIN transfer 5,Internal 20PIN (Key A) interface support (Gen2‑Gen1), USB3.0, USB2.0 and USB1.1 devices 6,Supports all motherboards and meets the standard specifications of the chassis. Can be converted to a 20pin Key A interface through the 19pin interface on the motherboard, which converts the original support for Type‑A to Type‑C to easily expand the motherboard functions without wasting the Type‑C of the chassis interface Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.