1.1. FS-U4L-Pro is a PCIE X1 interface to 4-Ports USB 3.0 expansion card. Allow users add 4X 5Gbps max vertical USB-A ports on Desktop PCs, Working Stations, and NAS Data Centers. It will light up 4X high power consumption USB 3.0 devices which including USB industrial cameras, USB VR-systems, USB 3.0 NVME enclosures, USB live broadcast devices, USB 3.0 SSD/HDD enclosures, USB 3.0 video adapters and USB 3.0 universal docking stations. 2.2. Based on 1X RENESAS UPD720201 5Gbps USB 3.0 host controller will compatible with AMD, ARM, and Intel hardware platform Desktop PCs. The 4X added-on vertical USB-A ports will share 5Gbps total bandwidth. It will also compatible with 4X normal USB devices such as USB keyboard, USB mice, USB speakers, USB KVM switch, USB HUB, USB flash drive, printers, gaming pad, smartphone, tablet, and more USB-A interface devices. 3.3. Built in Self-Powered Technology, no need to plug any additional power cables from Desktop PCs power supply unit. Allow each USB 3.0 port get 5V/2A 10W max (5V/8A 40W in total) power supply from motherboard directly for connected high power consumption USB 3.0 devices. add 4X electronic fuse and 4X voltage stable capacitor and 4X voltage stable inductance on the PCIE USB expansion card, will protect user's data and USB 3.0 devices, make sure connection . 4.4. Compatible System: 1. Plug and Play on Windows 11, 10, 8.x (32/64bit) and Windows Server 2012, 2012R2, 2016, 2019, 2022 systems. 2. Need to Install Driver on Windows XP, Vista, 7 (32/64bit) and Windows Server 2003, 2003R2, 2008, 2008R2 (32/64bit) systems. 3. Plug and Play on most Linux kernels. 4. NOT support MAC OS X. 5.5. PCIE X1 interface design, will works on PCIE X1, X2, X4, X8, X16 slot, do not work on PCI slot. Based on PCIE 2.0 standard, will compatible with PCIE 1.x, 2.x, 3.x, 4.x PCIE slot. The full height bracket mounted on this PCIE USB 3.0 expansion card, will works on Standard Size PCs. Low profile bracket in the package, will works on Slim PCs.