REPOTEC 10/100/1000Mbps Full/Half-Duplex triple-speed Gigabit Ethernet adapter, Support 32-bit PCI v2.2; 66 or 33MHz bus speed, Auto-Negotiation, supports data transmission bandwidths ranging from 10Mbps - 2000Mbps, Support Full Duplex flow control (IEEE 802.3x), Support VLAN tagging (IEEE 802.1q), IEEE 802.1p Priority queuing for 4 classes of priority queues, Support Crossover Detection & Auto-Correction, Support power-down/link-down power saving, 8Kbits for transmit buffer, 64Kbits for receive buffer