System Overview
Dahua's NVR4000 is one of the NVRs which have the most reasonable price and best quality for IP video surveillance applications. This Lite NVR provides up to 5MP resolution. Additionally, the NVR features a mouse shortcut operation menu, remote management and control, centre storage, edge storage, and back up storage. Designed as a low-cost, easy installation, this NVR is ideal for a wide range of applications such as public safety, water conservancy, transportation, city centers, education, and financial institutions. The NVR is compatible with numerous third-party devices making it the perfect solution for surveillance systems with or without a video management system (VMS). Its open architecture supports multi-user access and is compatible with ONVIF 2.4, enabling interoperability when combined with IP cameras.

Features
H.264+/H.264 codec decoding
Max 200Mbps Incoming Bandwidth
Up to 5MP Resolution for Preview and Playback
HDMI/VGA simultaneous video output
Support ANR technology to enhance the storage reliability when the network break down

specifications
http://br.dahuasecurity.com/download/DHI-NVR4204_4208_4216_4232_Datasheet_20160921.pdf