HIGH PERFORMANCE: 2-Port USB PCIe Card with ASMedia ASM3142 host controller (PCIe 3.0 x2) has two SuperSpeed 10Gbps USB-A ports (USB 3.1 Gen 2 / USB 3.2 Gen 2x1); Speeds up to 10Gbps/port; Upgraded version of our popular USB card PEXUSB312A2 MAXIMIZED USB PERFORMANCE: Add-on card supports Multiple Ins for max bandwidth when using mixed-speed devices; Supports UASP & optimized for SSDs/HDDs, NVMe, thumb drives; Supports USB 3.0/2.0 devices POWER: USB PCI Express 3.0 expansion card w/ SATA power header supplies supplemental power to the USB ports (when motherboard power is insufficient) providing up to 4.5W (5V @ 0.9A) per USB-A port COMPATIBILITY: USB PCIe adapter card installs in full or low-profile PCIe 3.0 x4 slot and up; Bracket included; Backward compatible w/ PCIe 2.0; Supports Win/Linux/macOS w/auto drivers on Win 8 & up