Features: 1. Adopt nec720201 master chip, high-speed computing core, high compatibility 2. Comes with 2A power supply module, no need for external power supply, 330 12mm*12mm closed type large inductors. 3. Each interface is equipped with an independent interface protection insurance. When the external usb device is short-circuited, or the current is too large, etc., the power can be cut off instantaneously, so that the external device and the computer are protected from damage, and the fault is automatically restored after the fault is removed. 4. Each interface is equipped with an independent voltage regulator capacitor, which can ensure that no interface power supply is stable, and the capacitor adopts solid-state patch type, which can withstand 250 ℃high temperature endurance. 5. Adopting the immersion gold process, it has good electrical conductivity and strong anti-oxidation ability, which can ensure the transmission is more stable. Specifications: Brand: SSU Model: U3V04S+ Type: 4-port USB 3.0 PCIe expansion card Interface: PCI-e x1, compatible with PCI-e x1/ x4/ x8 / x16 USB interface: 4-port USB 3.0 Transmission rate: 5Gb/s USB3.0 Applicable models: for desktop PC Supported system: for Windows XP 32/64bit, Windows 7 32/64bit, Windows 8/8.1, Windows 10 Product net weight: 55g Product size: 120*66*22mm/4.72*2.60*0.87" Notes: 1. There may be slight size deviations due to manual measurement, different measuring methods and tools.  2. The picture may not show the actual color of the item because of different photographing light, angle and display monitor. Included: 1 X PCIe Expansion Card 1. Adopt nec720201 master chip, high-speed computing core, high compatibility 2. Comes with 2A power supply module, no need for external power supply, 330 12mm*12mm closed type large inductors. 3. Each interface is equipped with an independent interface protection insurance. When the external usb device is short-circuited, or the current is too large, etc., the power can be cut off instantaneously, so that the external device and the computer are protected from damage, and the fault is automatically restored after the fault is removed. 4. Each interface is equipped with an independent voltage regulator capacitor, which can ensure that no interface power supply is stable, and the capacitor adopts solid-state patch type, which can withstand 250 ℃high temperature endurance. 5. Adopting the immersion gold process, it has good electrical conductivity and strong anti-oxidation ability, which can ensure the transmission is more stable.