Cisco QSFP-4SFP25G-CU3M | 100G→4x25G DAC | QSFP28→4xSFP28 | 100GBASE-CR4/25GBASE-CR | passive twinax, λ n/a | 3m | QSFP28/SFP28 AI High-efficiency 350W AC power supply

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

Consider optical attenuators for very short links to prevent receiver saturation

This adapter includes crypto acceleration with IPsec inline encryption and secure boot functionality for enhanced data center security

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

Cisco QSFP-4SFP25G-CU3M | 100G→4x25G DAC | QSFP28→4xSFP28 | 100GBASE-CR4/25GBASE-CR | passive twinax, λ n/a | 3m | QSFP28/SFP28 AI High-efficiency 350W AC power supplyPassive 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.