Top 5 4 Channel DVRs

The IP fixture has been recognized for a number of distinct advantages. Here, the developers have provided not only simultaneous recording with sound of all 4 cameras, but also playback. What is important, in this case, the speed reaches 120 fps. Channel shooting is performed in a wide range of resolutions - from 176x144 to 1920x1080. The volume of archived information reaches 6 TB; for this, a removable drive is installed via the SATA interface.

The benefits include support for cloud storage. Thanks to modern P2P technology, there is access to a computer and a mobile phone. The application is installed for free. To connect external devices, the DVR has two USB 2.0. The backup archiving option is also included in the functionality, as is the module-by-module reset to factory settings. Of the playback modes, frame-by-frame forward has received positive feedback. When purchasing the device, you need to remember that it works fine only at positive temperatures (up to 45 degrees).

The model is an elegant ergonomic case weighing only 400 grams. It runs on a dual-core processor and supports HDMI, VGA interfaces. The software is based on the popular Linux operating system. Each window contains the name of the camera, date, time, motion activity, video loss.From the moment the event starts, options such as video recording, photography, sending information to the monitor, PTZ control are available. Backup takes place both over the Internet and a USB drive.

According to user reviews, the functionality offered is the most common. You can not only record what is happening, but also view the finished material in normal, slow or accelerated modes, select the necessary files, and make a digital zoom. The maximum recording resolution is up to 6 MP. The video signal is activated both manually and by schedule or alarm. The video duration limit is set to 120 minutes, or 60 minutes by default. A big plus is the Sata III hard drive up to 6 TB, the ability to connect up to 128 users. The identified drawback is the lack of support for PoE technology.

In reviews, buyers often pay attention to this model, since it optimally balances technical characteristics and operational potential. The device has compact dimensions of 30x24.8x5.2 cm and operates effectively in the temperature range from minus 10 to plus 55 degrees. It supports 4 IP-type cameras, which, in resolutions up to 5 M, produce video recording with a total speed of 100 fps. It uses 720-1080P and 3-5 M formats. There are 6 recording levels to achieve good quality. To rationally store the received information, a fairly standard H.265/H.264 compression algorithm is used. The built-in archive holds up to 6 TB of information stored on the hard drive.

Each channel is voiced, so you can always not only see, but also hear everything that happens behind the scenes. If necessary, real-time multi-screen monitoring of the situation is performed. The unit is equipped with an HDMI output, which is perfectly compatible with Full HD digital monitors. Own diagnostic system checks the correct operation of the device, which eliminates unpleasant surprises. Additional advantages - the presence of a motion sensor, a switch, 3 ports of different types, the ability to send messages by e-mail.

This representative of the budget category of hybrid models combines modern design, structural strength during operation in different conditions and powerful functionality. Video filming can be carried out on an analog channel in standard and high resolutions, as well as more innovative AHD or IP. When displaying images on Full HD monitors, the quality does not deteriorate. When recording, depending on the resolution, the speed can reach up to 25 fps for each of the cameras. In total, two flows are structurally admissible.

Playback is synchronous type for all 4 channels. The device supports remote connections in the amount of 128. As for storing the received information, for safety, it is backed up through special connectors. The SATA hard drive can hold up to 6 TB of recorded material.

The manufacturer offers a model with pentaplex functionality, which is equipped with 4 channel BNC video inputs, one video output of GDMI, VGA formats. RCA support is provided for the audio signal. When recording, both analog and hybrid modes are supported. The received information is compressed in the H.264/G.711A format standard for many registrars. The presence of two USB ports allows you to download the archive to an external drive. The hard disk capacity reaches 10 TB, which users call an excellent result in reviews.

The technical solution is based on the Hisilicon Hi3520D processor. The device is adapted to work with a number of protocols: PPPoE, ONVIF, HTTP and others. This helps you get the most out of your device. Ease of management is another useful advantage. After all, you can shoot in any of the modes, you can select files with the mouse, and through the network.