Cisco QSFP-4SFP25G-CU5M | 100G→4x25G DAC | QSFP28→4xSFP28 | 100GBASE-CR4/25GBASE-CR | passive twinax, λ n/a | 5m | QSFP28/SFP28 AI wideband audio and strong noise

wideband audio and strong noise reduction through a flexible boom microphone

This configuration provides C2P airflow

Engineered for designers

and 4th Gen Ray Tracing Cores

while front-panel stacking supports up to eight switches for simplified management and scalability

Cisco QSFP-4SFP25G-CU5M | 100G→4x25G DAC | QSFP28→4xSFP28 | 100GBASE-CR4/25GBASE-CR | passive twinax, λ n/a | 5m | QSFP28/SFP28 AI wideband audio and strong noisePassive copper breakout DAC that connects one 100G QSFP28 port to four 25G SFP28 ports over a 5 m distance, enabling flexible rack to rack or long ToR fan out with low latency. MSA compliant form factors ensure broad interoperability across QSFP28 SFP28 switch and NIC ports.