add USB 3.0 port to your old computer USB3.0 Host Controller: NEC chipset Data Transfer speed: 5.0Gbps

USB3.0 PCI express cardNEC uPD7207200Max.Data Transfer Rate:5.0GbpsSystem Interface:PCI Express 2.0*1External Port:2 USB ports(Supports Super-Speed/High-Speed/Full-Speed/Low-Speed)Power Input:4-pin power connectorOutput Voltage Per Port:DC +5VOutput Current Per Port:Max.900mAOperating Temperature:Certification:FCC Class B,CESystem Support:Windows XP/Windows Vista/Windows 7(32/64-bit)Dimenstions(L*W*T):69*68*1.9mmBracketStandard 121mm/Low Profile 80mm

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USB 3.0 PCI express card