What is the Dell DS-6505B?
The Dell DS-6505B is a SFP+ optical transceiver, listed by the manufacturer as "Dell EMC DS-6505B Switch 24 x 4/8/16Gb SFP+ 12 Active Ports (SFPs included) - SFP28-25G-SR Normal Airflow 2 x PSUs Fabric OS8 Installed". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.