SIIG Dual Profile GigaLAN PCI: * Easily upgrade to Gigabit (10/100/1000 Mbps) Ethernet on your full-height and low-profile desktop computer * Supports up to 1000 Mbps and backward compatible with 10/100 Mbps networks * Crossover detection and auto-correction * Auto-negotiation intelligently detects and determines 10/100/1000 Mbps and full-/half-duplex * Checksum and Segmentation Task-offload reduce CPU workloads for enhanced system response and network scalability * Supports Flow Control, Layer 2 Priority Queuing, VLAN Tag and Jumbo Frames * LEDs to indicate link and activity status * Regulatory approval(s): RoHS, FCC Class B (DoC) and CE * RoHS-compliant * Port type: RJ45 10/100/1000 Mbps Ethernet * Fully compliant with PCI Plug-n-Play 2.2, 32-bit bus, 33MHz * Universally keyed PCI interface to work in 3V and 5V PCI slots * Fully compliant with IEEE 802.3, 802.3u, 802.3ab and 802.1q * Supports IEEE 802.3x Flow Control, IEEE 802.1Q VLAN Tagging and IEEE 802.1P Packet Prioritization * Auto-MDI/MDI-X compliant