What is the Sandstone 280-0353-ST?
The Sandstone 280-0353-ST is a SFP+ optical transceiver, listed by the manufacturer as "Cyan Compatible 8G SFP+, 10GBASE-FC/LW/LR, 1310 nm, 10km SMF LC, DDM, C-Temp, BLUE Latch". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.