Ctronics N6100-8EHP/48 H.264 8CH 5MP 1080P Network Security Surveillance CCTV Video Recorder NVR HDMI ONVIF 2.0 Embedded Linux Home Monitoring Security Surveillance Systems with 3G and Mobile Surveillance - Support iPhone, Windows Mobile, BlackBerry, Symbian and other Android Smart Phone

The description say's it comes with a 4TB hard drive (Not Installed) it didn't arrive with one. Software is a little flakey. so far just a 160 dollar paper weight... Spend your money on a better security DVR. Last line of the Add on Amazon: NOTE: NVR's DO NOT INCLUDE HARD DRIVES BY DEFAULT, THIS NVR IS WITH INTERNAL 3.5" HDD（4TB) INSTALLATION (NOT INCLUDED)

Same software that is installed in their mini NVR... after figuring out all the quirks of these systems that work really well so far. This one has an 8 port poe switch and separate lan so the camera don't tie up your network. HDMI and audio as well as RS485 for PTZ

JUNK