What is the Sandstone XCVR-A00Z85-ST?
The Sandstone XCVR-A00Z85-ST is a XFP optical transceiver module, listed by the manufacturer as "Ciena Compatible 10G XFP, 10GBASE-SR, 850 nm, 300m MMF LC, DDM, E-Temp". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.