SFP 1.25G PX20+ PX20++ 1550 20KM SC
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SFP-OC3-IR1 OC3,SFP-OC3-LR1 OC3 ,SFP-OC3-LR2 OC3 OC3 155M Cisco SFP Modules D...
SFP-OC3-SR,SFP-OC3-MM OC3 155M Fiber Optic Multimode SFP Transceiver