What is the Prolabs 280-0549-00-PLW?
The Prolabs 280-0549-00-PLW is a XFP optical transceiver module, listed by the manufacturer as "10GBASE-DWDM XFP SMF 1530NM TO 1560NM, 80KM,LC,DOM". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.