1m (3ft) Dell (DE) AOC-Q28-4SFP28-25G-1M Compatible 100G QSFP28 to 4x25G SFP28 Active Optical Breakout Cable provides a connection of a 100G QSFP28 port on one end and to four 25G SFP28 ports on the other end and is suitable for quick and simple connections within racks and across adjacent racks.