The ISA 28.8 Fax Modem with a Rockwell RC288DP Chipset is a vintage computer component that has been tested and confirmed to be in working order. This modem card has two ports, one for a DSL/Phone connection (RJ-11) and is compatible with an ISA port. It is designed to provide reliable fax transmission capabilities for computers equipped with an ISA bus. The Rockwell brand is known for its quality and durability, making this modem a dependable choice for users looking to incorporate fax capabilities into their computer systems.