What is the Gigatech QSFP-100G-CU.25M-GT?
The Gigatech QSFP-100G-CU.25M-GT is a QSFP optical transceiver module, listed by the manufacturer as "100GBASE-CR4 QSFP Passive Copper Cable Cisco Compatible- 0.25M". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.