Carry a 100GbE link between QSFP28 interfaces with a fixed 2 m active optical cable rather than separate transceivers and patch fiber. The cable integrates the optical assemblies and QSFP28 endpoints into one interconnect, providing a direct point-to-point connection for short equipment-row and rack-level runs. ADD-Q28CIQ28MX-O2M is specified as a 100GBASE active optical cable for QSFP28 connectivity. This cable fits deployments where Cisco and Mellanox 100G QSFP28 equipment must be linked across a short distance. Typical endpoints include switch ports, server network adapters, storage interfaces, and high-bandwidth fabric connections. Its 2 m length suits adjacent devices in the same rack or nearby rack positions while avoiding excess cable slack in dense installations. The defining characteristics are its 100GBASE rate, QSFP28-to-QSFP28 interface, active optical construction, and cross-platform Cisco-to-Mellanox compatibility. It is not a field-terminated fiber run or a separate optics pair: both interface ends are fixed to the cable assembly. Match the required port interface, endpoint compatibility, and 2 m routing distance before installation.