The product is a lot of 2 SupraFAXModem 288 external modems, each with a maximum downstream data rate of 28.8 Kbps. These silver modems are designed with serial (RS-232) ports and dial-up modem capabilities. Made by the brand SUPRA, these units are compact with dimensions of 6 inches in length, 1 inch in height, and 4 inches in width. Manufactured in the United States, these fax modems offer connectivity via POTS RJ-11. This lot of modems includes a Mac serial cable and power supply unit, making them a reliable solution for home networking and connectivity needs.