Standalone DVR Recorders are the devices that record video & audio in a digital format to a disk drive, USB flash drive, SD memory card or other memory medium within a device. With the DVR Recorder, you can record the camera video on the hard disk. There are mini DVR Recorders for only one channel video camera, 4CH DVR for 4 cameras, 8CH DVR for 8 cameras and 16CH DVR for 16 cameras. And we have 24CH and 32CH DVRs which can support up to 4 SATA HDDs. Most of the Standard alone DVR Recorder support the networking view.