What is the Sandstone TOM-10G-IR2-ST?
The Sandstone TOM-10G-IR2-ST is a XFP optical transceiver module, listed by the manufacturer as "Infinera Compatible 10G XFP, 10GBASE-ER, 1550 nm, 40km SMF LC, DDM, C-Temp". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.