The US Robotics 3Com 3CP5699A is a computer internal fax modem card with a maximum downstream data rate of 56 Kbps. It is designed for compatibility with PCI ports and is manufactured by 3Com. This modem card allows users to connect to the internet at a faster speed and streamline communication for fax and other online activities. With its reliable built-in fax capabilities, this modem card offers efficiency and convenience for users looking to upgrade their computer's connectivity options. Free shipping included with USPS ground advantage