The product family has features targeted for High Availability (HA) applications. This includes full pluggability, shelf management options, and redundancy. The Type 39c HA line features 9U cPCI backplanes from Elma Bustronic, which include pluggable 47-pin connectors for hot-swapping power, supplies. There are also pluggable fan tray headers and optional shelf management modules. Redundancy options can be built-in with all of these components. The backplanes are available in standard cPCI, H.110, or PICMG 2.16 options.