H3C SP-EI-D,L2以太网交换机主机,24个BASE-T,4个 SFP,支持ACV H3C S5120-EI-D-以太网交换机 光模块 SFP-GE-SX-MM850-D 光模块-SFP-GE-多模模块-(850nm,0.55km,LC) SFP-GE-LX-SM1310-D 光模块-SFP-GE-单模模块-(1310nm,10km,LC) SFP-GE-LH40-SM1310-D 光模块-SFP-GE-单模模块-(1310nm,40km,LC) SFP-GE-LH70-SM1550-D 光模块-SFP-GE-单模模块-(1550nm,70km,LC) SFP-STACK-Kit SFP堆叠电缆-(150cm,含堆叠模块)