The RP-3200R Adapter is a 10/100/1000Mbps high-speed Gigabit Ethernet Adapter. This model is equipped with an Auto-Negotiation function that automatically supports data transmission bandwidths ranging from 10Mbps ~ 2000Mbps. This function smoothly and automatically switches drivers between 1000Mbps, 100Mbps and 10Mbps, Full or Half Duplex, LAN connections. The Adapter runs in 32-bit bus master mode. The device comes with drivers for all major operating systems.