Features: The interfaces expansion expands the single USB2.0 9-pin of the motherboards to a double 9-pin independent channel, supporting the simultaneous connection of two set of front USB panel or devices, effectively solve the problem of insufficient chassis interfaces and easily achieving the paralleled access requirements of multiple devices. Not need driver, compatibles a wide ranging of standard USB2.0 protocols, compatibles mainstream systems, not need for external power supply or driver installation, can be quickly identified by inserting it into the 9PIN slot on the motherboards, perfectly supporting the upgrades and expansion of old motherboards . ‌Signal independent enhancement, interferences resistant with signal amplification chip and filtering capacitors; double channel independent power supply reduces the risk of data transmission crosstalk, ensuring stable operation of peripherals such as keyboards, mouse, and USB drive, with a transmission rate of 480Mbps and full speed performances. For multiple scenario: The module can be fixed on the chassis backplanes or hard drive slot, optimizing the internal space and wiring of the chassis, suitable for low-cost expansion in small chassis, office hosts, and peripherals intensive scenario. The expansion solution suitable for DIY installation, industrial control equipment, servers and other scenario that require multiple USB interfaces. It can simultaneously expand the USB2.0 and card reader module on the front of the chassis to meet personalizing hardware transformation needs. Specifications: Size: about 12X10CM/4.72x3.94in Connection：USB2.0 9pin to Double 9-pin (Vertical) Power: 5V Package Includes: 1Set USB2.0 9pin to Double 9-pin (Vertical) Splitter note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.