What is the Sandstone SFP-GE-S-I-ST?
The Sandstone SFP-GE-S-I-ST is a SFP optical transceiver module, listed by the manufacturer as "Cisco ASR Compatible 1G SFP, 1000BASE-SX, 850 nm, 550m MMF LC, DDM, I-Temp, BLACK Latch". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.