What is the common feature of all devices that can record video content?

The common feature among all devices that can record video content is their digital storage capabilities. This means that these devices are designed to capture video data and save it for later playback, which is essential for any video recording functionality. Digital storage can take various forms, such as hard drives, SSDs, or cloud storage, enabling users to keep recorded videos without the limitations of physical media.

For example, devices like DVRs, camcorders, and even smartphones all utilize some form of digital storage to hold video files. This capability allows for easy management, editing, and retrieval of recorded content, distinguishing these devices from those that may solely playback or display video but lack the necessary mechanism to record and store it.

Other options present characteristics that may apply to certain devices but do not encompass all video recording devices universally. For instance, not all recording devices require analog video support, cable connections, or online streaming capabilities.