S1720-52GWR-PWR-4P-E 全网管 1U (48个10 100 1000Base-T以太网端口,4个千兆SFP,PoE+,含license,370W POE交流供电) S1720-52GWR-PWR-4P-E 全网管 1U (48个10 100 1000Base-T以太网端口,4个千兆SFP,PoE+,含license,370W POE交流供电)
