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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 1GB Fabric Upgrade, 綠色, 有線, 50 W, 1024 MB

3com 1GB Fabric Upgrade. 產品色彩: 綠色. 連接方式: 有線. 功率消耗（一般操作）: 50 W. 內部記憶體: 1024 MB

1GB Fabric Upgrade

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