What is the Sandstone 3FE50712BA-ST?
The Sandstone 3FE50712BA-ST is a XFP optical transceiver module, listed by the manufacturer as "Alcatel-Lucent Compatible 10GigE XFP Module LX 1x10GigE, SM 1310nm ~10km (non-hardened)". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.