The Xircom RBEM56G-100 RealPort CardBus Ethernet 10/100+ Modem 56K PCMCIA Card is a versatile laptop add-on card that provides high-speed Ethernet connectivity and a 56K modem function. With its CardBus form factor and compatibility with universal products, this Xircom modem card is a reliable choice for enhancing your laptop's network capabilities. Featuring 4 ports and a maximum data rate of 56 KBps, this unit is a practical solution for users in need of a reliable external interface for their devices. Made by Xircom in Malaysia, this modem card offers a convenient and efficient way to expand your laptop's networking capabilities.