华三S5130S-52ST-PWR-EI交换机 LS-5130S-52ST-PWR-EI(L2以太网交换机主机,支持48个10/100/1000BASE-T电口,支持2个10G BASE-X SFP+端口,支持2个1/2.5/5/10G BASE-T电口,(PoE+,AC))