Outstanding performance of the BlueOptics BO252503K25M 25-meter active optical cable (AOC) from CBO with a four-channel 40 Gb/s QSFP transceiver connection for distances of up to 100 meters over multimode fiber optic cable. The BlueOptics BO252503K25M 25-meter active optical high-performance cables feature a flame-retardant LSZH fiber jacket (halogen-free, with low smoke emission in case of fire). Versatile applications: Compared to Direct Attach Twinaxial cable solutions (DAC), the hot-pluggable active optical cables are more flexible and lighter. The QSFP connectors have a built-in E/O and O/E converter that transforms the electrical signal into an optical signal. This signal is converted back into an electrical signal and output at the other end of the active optical cable. The QSFP transceiver connections of each BlueOptics BO252503K25M 25-meter active optical cable are manufactured according to MSA standards, taking into account the SFF-8436 and IEEE 802.3ba specifications.