What is the Sandstone 1442971G1?
The Sandstone 1442971G1 is a XFP optical transceiver module, listed by the manufacturer as "Adtran Compatible 10G CWDM XFP, 10GBASE-ZR, OC192-LR2, STM64-L64.2, 1470 nm, 80km SMF LC, DDM, I-Temp". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.