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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.

HP 2530 8-port Switch Power Adapter Shelf

HPE Aruba Networking J9820A, 黑色, HP 2530, 171.5 x 133.4 x 44.5 mm, 270 g

HPE Aruba Networking J9820A. 产品色彩: 黑色, 兼容性: HP 2530. 尺寸（宽 x 深 x 高）: 171.5 x 133.4 x 44.5 mm, 重量: 270 g

J9820A

HPE Aruba Networking J9820A 网络开关元件