Dahua Ultra Series vs QNAP VS Series comparison

Dahua's next generation network video recorder offers unparalleled
recording technology for IP video surveillance applications. For
applications where details are critical for identification, this
enterprise-level NVR provides a powerful Intel processor with up to 4K
resolution. Additionally, the NVR features a mouse shortcut operation
menu, remote management and control, centre storage, edge storage,
and back up storage.
This NVR is ideal for a wide range of applications such as public safety,
transportation stations, government institutions, hotel resorts, shopping
malls, city centers, and financial institutions, where demand expansion
flexibility, high reliability and centralized storage management.
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 4K cameras.

QNAP, named from Quality Network Appliance Provider, is devoted to providing comprehensive solutions from software development, hardware design to in-house manufacturing. Focusing on storage, networking and smart video innovations, we strive to build a technology ecosystem upon subscription-based software and diversified service channels. QNAP envisions NAS as being more than a simple storage and has created a cloud-based networking infrastructure for users to host and develop artificial intelligence analysis, edge computing and data integration on their QNAP solutions.