QSFP-40G-ER4 QSFP 光模块 1310nm 40km LC DOM AO-40GB-QSFP-ER4 QSFP-40G-ER4 QSFP 光模块 1310nm 40km LC DOM AO-40GB-QSFP-ER4 低功耗<3.5W / DFB+APD
