Based on this product's specifications, here are some alternatives and similar models
NVR Ernitec Cygnus 32 channel 8MP 16TB SATA 1.5U
Summary description:
The Ernitec Cygnus NVR supports 32 video input channels with a maximum resolution of 8MP. It features 16TB storage via SATA HDD, Ethernet LAN data rates of 10/100/1000 Mbit/s, and audio output through a 3.5 mm jack. Designed for efficient video surveillance and recording in various environments.