E100T-G cards provide twelve switched, IEEE 802.3-compliant 10/100 Base-T Ethernet ports. Ports detect the speed of an attached device by auto-negotiation and automatically connect at the appropriate speed and duplex mode, either half or full duplex, and determine whether to enable or disable flow control. An E100T-G card consumes 55 W, 1.46 AMPS, and 188 BTU/Hr.