Axiom Memory AOC-Q-4S-100G-20M-AX 100G QSFP28 to 4 SFP28 Active Optical Cable

Convert a single 100 GbE switch interface into four 25 GbE device links with an integrated optical breakout assembly. The QSFP28 host end connects to a 100G port, while four SFP28 ends present individual 25G connections. Active optical construction carries the links across a fixed 20 m run without separate optical transceivers and patch leads. Use the cable where an Arista switch or other Arista-compatible environment needs to fan out one high-speed uplink into four server, storage, or network connections. Its 100G-to-4x-25G topology suits leaf-to-server aggregation and high-density rack layouts where copper reach or bulk becomes limiting. Because each optical end is factory terminated, the path avoids field fiber termination and separate module selection. Axiom Memory AOC-Q-4S-100G-20M-AX is a specific 20 m active optical breakout option rather than a single-ended QSFP28 link. Select it when both endpoint connector types and the four-way 25G fan-out match the port plan. Verify that connected equipment supports QSFP28 100G breakout operation and SFP28 25G interfaces before deployment.