AJA Ki Pro Ultra 12G Installation And Operation Manual page 24

You must remove any connected fiber or coaxial cables from the SFP modules
before you remove the modules from the Ki Pro Ultra 12G. Pull down the SFP lever
to free the module before you withdraw the module from the cage.
For additional installation and operation details, see the instructions provided
with the SFP modules.
Ki Pro Ultra 12G File Based Recorder/Player v1.0 24 www.aja.com