This ACELEVEL DVR is a seriously capable security system that can handle pretty much any camera setup you throw at it. The 16 channels support multiple formats - TVI, AHD, CVI, and analog cameras up to 5MP resolution, plus it even handles 8 IP cameras up to 6MP if you want to mix and match. The included 2TB hard drive gives you plenty of storage for continuous recording, and the H.265 compression means you get high-quality video without eating up all your storage space. Setup is pretty straightforward with the intuitive interface, and you can access everything remotely via smartphone apps or web browser. The NDAA compliant chipset means it meets government security standards, which is nice peace of mind. Whether you're securing a small business, monitoring a large property, or just want comprehensive home surveillance, this DVR gives you professional-grade features without the professional price tag. The pentaplex functionality lets you view, record, playback, backup, and access remotely all at the same time, which is way more capability than most basic systems offer.