HP 510099-001 - Modem module (MDC 1.5, Guzzi) - For use in all countries and regions except Australia and New Zealand Part 510099-001 628824-001 Retail
HP 628824-002 - Mini modem daughter card (MDC 1.5, GUZZI) - 56Kbps, V92-compliant data/fax (Worldwide) Retail