StarTech.com AOC Breakout Cable for Cisco QSFP-4X10G-AOC3M - 3m/9.84ft 40G 1x QSFP+ to 4x SFP+ AOC Cable - 40GbE QSFP+ Active Optical Fiber - 40Gbps QSFP Plus/Transceiver Module Breakout Cable - C9300 C3850 (QSFP4X10GAO3)