This PCI Express card by Delock offers a network port with a data transfer rate up to 10 Gbps over conventional Cat.6 or Cat.6A copper cables. With the NBASE-T technology additional speeds of 2.5 Gbps and 5 Gbps are available. This allows higher transmission rates than 1 Gbps, when a 10 Gbps connection is not possible with the existing cable.