What is the Sandstone XFP-10G-CWDM1551?
The Sandstone XFP-10G-CWDM1551 is a XFP optical transceiver module, listed by the manufacturer as "Juniper Compatible Multi-Rate CWDM XFP, 10GBASE-ZR, OC192-LR2, STM64-L64.2, 1550 nm, 80km SMF LC, DDM, C-Temp". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.