What is the Gigatech 160-9405-900-GT?
The Gigatech 160-9405-900-GT is a QSFP optical transceiver module, listed by the manufacturer as "100GE 4WDM-40, 4X25G, SMF, 1310NM, 40KM QSFP28 Ciena Compatible". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.