Features: Flexible Expansion: Expand a single USB2.0 9-pin to double 9-pin interfaces, supporting simultaneous connection of chassis front USB, card reader or low-speed peripherals to meet the needs of multiple device access. Magnetic design: Adopt strong magnetic foot pad adsorption design, firmly to the bottom of the chassis, and can be used repeatedly. 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,fast speed and full speed performances. 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 Splitter note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.