What is the Sandstone TOM-10G-C53-LR2-ST?
The Sandstone TOM-10G-C53-LR2-ST is a XFP optical transceiver module, listed by the manufacturer as "Infinera Compatible 10G CWDM XFP, 10GBASE-ZR, OC192-LR2, STM64-L64.2, 1530 nm, 80km SMF LC, DDM, C-Temp". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.