The Conexant Data/Fax Modem PCI Card RD01-D850 is a 56K V.92 modem designed for desktop PCs. It features a PC Card (PCMCIA) Type I form factor with two ports for external interfaces including DSL/Phone (RJ-11). This modem, known as the RD01-D850 model, is compatible with a PCI port and utilizes V.92 standards for reliable data and fax communication. Ideal for those looking to enhance their computer's connectivity options with a dependable modem card.