Features: Expands your motherboards usb3.0 connectivitys with this 19pin female to two 20pin splitter adapter, for compatibility with P7P55/USB3 series and other modern motherboards. Features bidirectional 20pin port allocation, 5Gbps fast speed data transfer, and 65x21x10mm construction for space efficient PC builds. for PC enthusiasts, builders, and gamers needing multiple USB3.0 headers for peripherals without compromising data transfer speeds. Perfect for expanding internal USB connection in workstations, gaming rigs, or NAS systems requiring simultaneous storage drive and accessories. Achieve cable management while doubling usb3.0 capacity using this splitter card compliant with 19 pin motherboards specifications. Specifications: Materials: Size: 65x21x10mm/2.56x0.83x0.39inch Package Includes: 1PC usb3.0 Splitter Adapter note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.