What is the Sandstone 100-02169?
The Sandstone 100-02169 is a SFP+ optical transceiver, listed by the manufacturer as "Calix Compatible 10G SFP+, 10GBASE-BX-D, TX1330/RX1270 nm, 20km SMF LC, DDM, I-Temp". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.