Dell 100GbE to 25GbE / QSFP28 to SFP28 Adapter

This Dell QSFP28-to-SFP28 adapter is a network port adapter for using a 25GbE SFP28 module in a 100GbE QSFP28 port. It fits into the QSFP28 cage on a switch or network adapter and presents an SFP28 receptacle for the selected optic or copper module, enabling a single 25GbE link where the host port supports that operating mode. Compatibility depends on QSFP28 port support for QSA-style adapters and 25GbE operation, the SFP28 module type, network OS or firmware support, and the required media type and link speed at the other end of the connection.