What is the Dell S4048-ON?
The Dell S4048-ON is a QSFP optical transceiver module, listed by the manufacturer as "Dell Networking S4048-ON, 48x 10GbE SFP+ and 6x 40GbE QSFP+ ports, 2 x AC PSUs, - Licensable". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.