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A network switch is a computer networking device that links network segments or network devices. The term commonly refers to a multi-port network bridge that processes and routes data at the data link layer (layer 2) of the OSI model. Switches that additionally process data at the network layer (layer 3) and above are often called layer-3 switches or multilayer switches. A network switch is made up of network switch components.

3com 1000Base-Tx GBIC module, 1 Gbit/秒, 3Com Switch 4007 or Switch 4007R, or a SuperStack 3 Switch 4228G upgrade port, 1000BASE-T

3com 1000Base-Tx GBIC module. 数据传输率: 1 Gbit/秒. 槽式: 3Com Switch 4007 or Switch 4007R, or a SuperStack 3 Switch 4228G upgrade port, 输入输出端口: 1000BASE-T

1000Base-Tx GBIC module

3com 1000Base-Tx GBIC module 网络开关元件