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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-LH SFP Transceiver, 1 Gbit/秒, 有線

3com 1000BASE-LH SFP Transceiver. 數據傳輸速率: 1 Gbit/秒, 連接方式: 有線

1000BASE-LH SFP Transceiver

3com 1000BASE-LH SFP Transceiver 網路交換元件