Cisco QSFP-4SFP25G-CU3M | 100G→4x25G DAC | QSFP28→4xSFP28 | 100GBASE-CR4/25GBASE-CR | passive twinax, λ n/a | 3m | QSFP28/SFP28 AI Protocol-agnostic at the electrical layer

Protocol-agnostic at the electrical layer

Passive copper DAC breakout cable enabling a single 40G port to fan out into four 10G links

Consider optical attenuators for very short links to prevent receiver saturation

Featuring two QSFP56 ports with support for 1/10/25/40/50/100 Gb/s speeds

High-efficiency 350W AC power supply for switches with a Config 1 (C1) PSU bay

Cisco QSFP-4SFP25G-CU3M | 100G→4x25G DAC | QSFP28→4xSFP28 | 100GBASE-CR4/25GBASE-CR | passive twinax, λ n/a | 3m | QSFP28/SFP28 AI Protocol-agnostic at the electrical layerPassive copper breakout DAC for connecting a 100G QSFP28 port to four 25G SFP28 ports over a 3 m run, delivering low latency and cost effective fan out for data center racks. MSA compliant form factors ensure broad interoperability across QSFP28 SFP28 switch and NIC ports.