What is the Sandstone 7SN-500-ST?
The Sandstone 7SN-500-ST is a SFP+ optical transceiver, listed by the manufacturer as "Accedian Compatible 10G SFP+, 10GBASE-LR, 1310 nm, 10km SMF LC, DDM, I-Temp". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.