What is the Sandstone JL486A-ST?
The Sandstone JL486A-ST is a SFP optical transceiver module, listed by the manufacturer as "HP Compatible 25G SFP28, 25GBASE-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.