What is the Sandstone SFP-10G-LR-S-ST?
The Sandstone SFP-10G-LR-S-ST is a SFP+ optical transceiver, listed by the manufacturer as "Cisco Compatible 10GBase-LR SFP+ Transceiver, SMF, 1310nm 10km, LC, Industrial Temp". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.