4 Ports PCIE to USB3.0 Expansion Card, USB3.0 Superspeed 5Gbps Front Expansion Card, USB PCIE Expansion Card for Win XP Win7 Win 8 Win 10 Win 11 Linux

Adding 4 USB 3.0 ports on your desktop computer by PCI Express (1X) slot. The super fast USB 3.0 ports adopting advanced NEC chipset will provide 5Gbps max data (total) transfer speed for video, audio, photos or files.
Doesn't require additional power, each port owns individual 2A power supply (8A in total) to meet high power-consuming data device's demand, easy to install 2 port PCIE port.
4X added power module provide 4 ampere current ensure adequate power supply for USB device. 2X electric circuit protector and voltage stable capacitance protect data and device safety than ever.
NOT support MAC OS, Linux and GPU, applicable for PCI Express X1, X4, X8, X16 slot.
This USB card offers plug&play simplicity on Windows 11, 10, 8.1, 8(32/64bit) and Windows Server 2012, 2012R2, 2016, 2019, For Windows 7, XP, Vista and older systems, the card comes with a mini-CD with the necessary drivers.
What is Self-Powered Technology?

Self-Powered Technology is a new solution to add more power supply on USB 3.0 expansion cards. The old version PCI Express USB 3.0 cards need to plug power cables from Desktop PC's power supply unit. Even added on additional power, sometime it still lacks power when running few high power-consuming devices simultaneously such as USB HDD/SSD enclosures and USB NVME enclosures. PCI Express slot can provide 75W max power almost 12V/ 6.25A for PCIE devices. add 4X voltage transformer on USB 3.0 card will pick up 12V/ 3.5A power and convert to 5V/8A 40W.

Each USB 3.0 port will get 5V/2A 10W max power supply for USB 3.0 devices. Most of the high-power consumption devices just need 4 - 8W which means this USB 3.0 expansion card can light up 4X high power-consumption devices simultaneously.