Feature: 1. 4-port super-speed USB 3.0 PCI Express card, when connected to USB 3.0 compatible devices, maintaining compatibility with existing USB devices. 2. Up to 5Gbps data transmission, all interfaces can achieve high-speed (480Mbit/s), full-speed (12Mbit/s) and low-speed (1.5Mbit/s) data transmission. Mbit/s). 3. Easy to use, plug and play, and the device supports hot swapping, which brings you more convenience. 4. Supports all USB accessories conforming to the USB specification, to better meet your needs, and supports real-time insertion and removal of devices. 5. Made of high quality metal and ABS material, hard, wear resistant and has long service life. Specifications: Condition: 100% Brand New Item Type: Expansion Card Adapter Material: Metal + ABS Color: As Picture Product Show: Ultra-fast USB 3.0 interface is an I/O interconnection standard which will provide the next revolution in bandwidth and functions required by computers, consumer electronics and communications devices. With 10 times faster throughput than USB 2.0 and backward compatible with existing USB device functions, USB 3.0 interface will be a new wave of computer technology. This card is a super-fast 4-port USB 3.0 PCI Express card. This is the standard second generation PCI Express PC host system specification. It can transmit data at up to 5 Gbps when connected to USB 3.0 compatible devices while maintaining compatibility with existing USB devices. This motherboard supports high-speed USB 3.0 devices and is backward compatible with current high-speed USB 2.0 and full-speed USB 1.1 devices. It is an ideal choice for external storage devices, MP3 players, external DVD burners, card readers, digital cameras, webcams, printers, scanners, network video devices and all others USB devices. Product Specifications Use the main control chip: via compliant with PCI-Express specification revision 1.1, bus bandwidth 2.5Gbps compliant with USB specification revision 2.0 compliant with OHCI USB interface protocol revision 1.0a compliant with protocol USB Interface EHCI Revision 1.0 External power interface provides stronger power for USB bus Operating system: for Windows 7 / for Vista / for XP / for 2000 / for Server 2003-2008 32 / for Linux 64 bit and for MAC and other operating systems Package List: 1 x Expansion Card Adapter 1 x Optical Drive