The NC7170 features two ports on a single adapter, allowing customers to save valuable I/O slots for other purposes. Each port supports a PCI-X 64 bit/133MHz interface, which is also compatible with traditional PCI slots.
HP NC7170 Low Profile, Dual Port PCI-X 1000T Gigabit Server Adapter
HP NC7170 Low Profile, Dual Port PCI-X 1000T Gigabit Server Adapter