Features: Support USB3.0 19PIN expansion, provide two 9PIN port, compatibles water-cooled color light fan speed measurement. Efficient and stable connection performances, easy installation, applicable to a variety of devices, enhances system expandability. Adapts 19PIN to 9PIN interfaces conversion function on the motherboard, supporting simultaneous connection of two USB2.0 devices. Suitable for only equipped with USB3.0 motherboards but need to expand the USB2.0 interfaces scenario. Compatibles most mainstream motherboards and chassis designs Specifications: Support：USB3.0 19PIN to 2xUSB2.0 9Pin Expansion Adapter Size: abput 40x30mm/1.57x1.18in Input: USB3.0 19poin/20pin Female Output：2xUSB2.0 9Pin Package Includes: 1PC USB3.0 19PIN to 2xUSB2.0 9Pin Expansion Adapter note: Due to problem of lighting effect, there might be certain tolerances in product, please understand. Please allow 0-1cm error due to manual measurement.