S2720-52TP-PWR-EI (32个10/100Base-Tx以太网端口,16个10/100/1000Base-T以太网端口,4个千兆SFP,PoE+,370W POE交流供电) S2720-52TP-PWR-EI 全网管 1U (32个10 100Base-Tx以太网端口,16个10 100 1000Base-T以太网端口,4个千兆SFP,PoE+,370W POE交流供电)
