The D-Link DFE-530TX+ PCI Adapter is a 10/100MPS Ethernet card designed for computers with a PCI form factor. This model is from D-Link, a well-known brand in networking components. The appearance of this adapter being unused and still in its original box indicates that it has not been used before and is potentially still in working condition. Ideal for upgrading or adding Ethernet connectivity to a computer, this D-Link PCI adapter is a reliable choice for those in need of a high-speed network connection.