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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.

D-Link 4 Port SFP/mini-GBIC Expansion Module, 1 Gbit/秒, Gigabit Ethernet, 有線, 1000Base-SX, IEEE 802.3z, IEEE 802.3x, 0 - 40 °C

D-Link 4 Port SFP/mini-GBIC Expansion Module. 數據傳輸速率: 1 Gbit/秒, 資料連結協定: Gigabit Ethernet, 連接方式: 有線. I / O端口: 4x SFP ports, SFP

4 Port SFP/mini-GBIC Expansion Module

D-Link 4 Port SFP/mini-GBIC Expansion Module 網路交換元件