What is the Sandstone SFP+-SR/SX-ST?
The Sandstone SFP+-SR/SX-ST is a SFP+ optical transceiver, listed by the manufacturer as "Datacom Compatible Multi-Rate SFP+, 10GBASE-SR, SX, 1G-10G, 850 nm, 300m MMF LC, DDM, C-Temp". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.