What is the Sandstone BP3AM4LI?
The Sandstone BP3AM4LI is a XFP optical transceiver module, listed by the manufacturer as "BTI Compatible Multi-Rate XFP, 10GBASE-ER, OC192-IR2, STM64-S64.2b, 1550 nm, 40km SMF LC, DDM, I-Temp". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.