What is the Mellanox MCX4111A-ACAT?
The Mellanox MCX4111A-ACAT is a QSFP optical transceiver module, listed by the manufacturer as "Mellanox ConnextX-4 CX455A Single-Port 100GB QSFP28 PCle NIC". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.