100% brand new and high quality Features: The super-speed USB 3.0 interface is an I/O interconnect standard that will provide the next revolution in the bandwidth and functions required by computers, consumer electronics, and communication devices. With throughput 10 times faster than the USB 2.0 standard and backward compatibility with existing USB device functions, the USB 3.0 interface will be a new wave of IT technology. This board is a 4-port super high-speed USB 3.0 PCIE card. This is the specification of the standard PCI Express second-generation PC host system. It can transmit data up to 5 Gbps when connected to USB 3.0 compatible peripherals while maintaining compatibility with existing USB peripherals. This motherboard supports USB 3.0 high-speed devices and is backward compatible with current USB 2.0 high-speed and USB 1.1 full-speed devices. It is an ideal choice for external storage devices, MP3 players, external DVD burners, card readers, digital cameras, network video devices, and all other USB devices. The hot-swap function allows you to connect / disconnect devices without turning off the system power. Support operating system: Win 10 / 8 / 7 / Vista / XP / 2000 / ME / 98SE / Server 2003-2008 32/64 bit, Linux, DOS. Specifications: Type: 4-port USB 3.0 extension card Chip: NEC720201 PCI-e x1x4/x8/x16 port USB interface: 4 x usb3.0 Transmission rate: low speed (1.5Mbps) full speed (12Mbps) high speed (480Mbps) super speed (5Gbps) Product size: approx. 12x7x8cm/4.72x2.76x3.15in Compliant with PCI-Express specification Revision 1.1, bus bandwidth 2.5Gbps Compliant with USB specification Revision 2.0 Compliant with USB OHCI interface protocol Revision 1.0 1.0a Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes: 1PC x PCI-Express USB 3.0 expansion card 1PC x CD 1PC x Manual