Add high-speed Gigabit Ethernet connectivity to any system with a PCI expansion slot Auto-negotiates port speed to 10 Mbps, 100 Mbps, or 14880pps Mbps Plug and play installation Supports Jumbo Frames of up to 8 KB Network topology: with 10Base-T: 3/UTP, 100Base-TX: 5 Network type: Fast Ethernet switch board Bus type: PCI V2.2 Transmission rate: 10Mbps/100Mbps Network standard: IEEE 802.3 IEE 802.3u IEEE 802.3x Media Media: Non-modular Link Ports: 4 x RJ45 Transmission mode: full duplex/half duplex Exchange Mode: Transfer Network topology: with 10Base-T: 3/UTP, 100Base-TX: 5 Exchange rate: 10Mbps: 14880pps 100Mbps: 148800pps Size: 8K Indication panel: Link/, 100Mbps Colour:green Material:PCBandMetal Size:16 x 12 x 4CM Package Contents: 1 x Fast Ethernet switch board Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.