What is the Cyan 280-0053?
The Cyan 280-0053 is a XFP optical transceiver module, listed by the manufacturer as "0G DWDM XFP, 10GBASE-ZR, 1546.92 nm, CH38, 80km SMF LC, DDM, C-Temp, WHITE Latch". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.