H3C SQF L2以太网交换机主机,不含电源及风扇,含4块专用40GE模块 LSWM1HFANSCB 端口侧进风,电源侧出风风扇 LSWM1HFANSC 电源侧进风,端口侧出风风扇 LSWM1FANSC H3C S5820X-26S风扇模块(端口侧出风) LSWM1FANSCB H3C S5820X-26S风扇模块(电源侧出风)