1. Adopting nec720201 key control chip, high -speed computing core, high compatibility. 2. This card is equipped with 2A power supply and does not require external power supply, 330 12X12mm inductor is 100 10X10mm one. 3. Each interface is equipped with an interface protection fuse, and immediately cut off power while external USB short circuit or overcurrent occurs, protect external divices and computer from damage, automatically return to normal after troubleshooting. 4. Each interface equips with independently controlled capacitor, power supply without interface, can also run 250 celsius with solid chip capacitor, strong resistance. 5. With gold immersion process, good electrical conductivity, strong antioxidant capacity, it can stable delivery. 8A super power supply. 4 phase power supply module. 4 power supply. 4 interfaces work independently and do not affect each other. 4 free fuses. USB3.0 5Gbps interface rate (sending 1G movie only requires 10s) speed reaches about 160 MB/s. The back of the PCI-e card is equipped with 2 19pin USB3.0 interfaces, direct access is available if the chassis is equipped with a USB3.0 interface, if not used with the front panel. Specifications: Model: U3N014S + PW4 Number of interfaces: 4 Interface: PCI-E X1 Applicable slots: PCI-EX1 X4 X8 X16 Applicable model: Desktop : for XP, WIN7, WIN8, WIN8.1, WIN10 color: as shown Material: ABS Package Contents: 1 x PCI Express Expansion Card Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.