The MSP3885-E 56K PCI Modem is another model of a 56K dial-up modem that uses a PCI (Peripheral Component Interconnect) interface for connecting to a computer. This type of modem was commonly used for dial-up internet connections during the late 1990s and early 2000s. The Windows driver for this modem enables it to work with a Windows operating system, allowing your computer to communicate with the modem for dialing into the internet and other modem functions.