BlueOptics active optical cable (AOC) for 100G high-speed transmissions over distances of up to 100 meters as a QSFP28 to QSFP28 25-meter fiber optic cable connection for connecting hardware within racks or across adjacent racks. BlueOptics active optical cables are suitable for 100GBASE-SR4 Ethernet applications and feature a flame-retardant LSZH fiber jacket (halogen-free, with low smoke emission in case of fire). Compared to Direct Attach Copper (DAC) solutions, the hot-pluggable active optical cables are more flexible and lighter. The QSFP28 to QSFP28 25-meter connectors have a built-in E/O and O/E converter that converts the electrical signal into an optical signal. This signal is then converted back into an electrical signal and output at the other end of the active optical cable. The connection can be made to supporting hardware with QSFP28 to QSFP28 ports.