What is the Sandstone 10122-ST?
The Sandstone 10122-ST is a XFP optical transceiver module, listed by the manufacturer as "Extreme Networks Compatible 10G XFP, 10GBASE-LR, 1310 nm, 10km SMF LC, DDM, ETemp, BLUE Latch". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.