USB C Female to Female Design This is a USB C female to female adapter, which means that only Type-C 3.1 male cables or devices can be connected on both sides. 40Gbps and 8K Video DuHeSin usb c coupler meets power specs and data transfer rates of USB4, supports 40Gbps data transmission speed. With USB4 cable, it can support 8K@60Hz HD video & audio output. 100W PD Fast Charging: This USB C female to female connector will work up to 100W and totally provide the amount of power to satisfy your requirement of Macbook or other USB-C device. It can automatically adjust the power output parameters according to your device need. Highly Practical and Reliability Small and portable. A pack of 4 can fully meet your daily needs. Plug and Play. No external driver or software installation needed. Each usb-c coupler tested manually to ensure that it can work perfectly. Universal Compatibility Widely work with most Type C devices. For Thunderbolt 4/3, MacBook Pro, Chrome