2PORT USB 2.0 Pci Card for Pc/mac No Cable Clm Shl Pkg Rohs 2-Port Adaptec AUA-2000 USB 2.0 PCI Card General Features: Two (2) external USB 2.0 ports PCI interface NEC D720101GJ chipset 480 Mbps maximum data transfer USB ports are hot-swappable Regulatory Approvals: FCC CE