upgrade hardware

Hello All! I have an old ADT coax system with two cameras that was installed about eight years ago. I would like to update my system to have newer cameras and a newer DVR. However, a problem I ran into, is that while I can reuse the existing coax cabling, I am unsure as to the power supply...

Our NVR has two hard disks, 1 x 2TB and 1 x 4TB. I'd like to replace the 2TB with a second 4TB but don't want to lose the data that's on it. If I move the 2TB disk to an external eSata drive enclosure will the recordings on it still be accessible? Or is there a better way to do this? Thanks in...

Has anyone tried installing an IMX291 module (2MP Starlight) into a Dahua housing? (replace the existing module) I've ordered the USB module to use as a webcam (sports timing application) and it appears this could be installed into a non Starlight existing unit (upgrade). US $63.24 7% OFF|Non...