What is the Sandstone TRX100006-ST?
The Sandstone TRX100006-ST is a SFP optical transceiver module, listed by the manufacturer as "Transmode Compatible 1.25G SFP, 1000BASE-SX, FC 1G/2G, 850 nm, 550m MMF LC, DDM, C-Temp, BLACK Latch". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.