Dell JCYM9 QSFP28 to SFP28 Cable Adapter
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General Information
Interfaces/Ports
Technical Information
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Storage Capacity
The Dell JCYM9 QSFP28‑to‑SFP28 Adapter (also referenced as 0JCYM9) is a passive, hot‑plug converter module designed to enable a 100 GbE QSFP28 port to accept a 25 GbE SFP28 transceiver. It is used in situations where QSFP breakout isn't available or desired, allowing the reuse of QSFP optics or switch ports for lower-speed links. This adapter provides reliable signal conversion with minimal insertion loss and supports OEM-certified SFP28 modules on Dell servers and switches.