D-Link DNR Series [EOL] vs Quantum VS-NVR Series comparison

Stream, Record and Playback – Simultaneously record video, view live or playback recorded video from up to four mydlink cameras
Customize Your Storage– Securely store camera video on up to two attached USB external hard drives (bring your own drives – up to 4 TB each)
Trigger-Based Recording– Motion or schedule based recording of high-quality video and audio
Easy to Set Up – Quick and easy setup with auto-camera discovery
Remote & Local Access – Free mydlink View app for remote access and the mydlink web portal for local viewing

The VS-NVR series is available in a variety of form factors, including mini-tower, 1U rack mount, 2U rack mount, and an ultra-dense 4U 60-bay rack mount server for recording and retaining footage from hundreds of cameras for months or years.