A holder assembly includes a cover and a frame that together can support a first and second terminal that can each include a two-way wire trap feature. In embodiment, a content distributor broadcasts television media content to client devices, and caches the television media content that is broadcast. The apparatus calculates a cache hit ratio. The electronic part is screwed to the base through the surface supporting sections. The AC power source may also be used to charge a battery connected to the compressor.