The TRENDnet TEW-423PI 54Mbps 802.11g Wireless PCI Adapter is a network card that provides a maximum data rate of 54 Mbps. It has a 32-bit PCI 2.2 bus master form factor and is compatible with a PCI port. This adapter includes a 2dBi detachable dipole antenna for enhanced wireless connectivity. Manufactured by TRENDnet, a reputable brand, this unit is designed to meet the needs of users looking to upgrade their computer's networking capabilities. Made in China, this adapter is a reliable and efficient choice for those seeking improved internet performance.