After 3.5 years it's time to replace my 7616 K series NVR at my lake house. Connected to the NVR currently we have:
(14) 4K 8MP Darkfighter (turrets and bullets)
(2) 4MP (one turret one bullet)
I specifically want to know if I should purchase the DS-7716NI-M4/16P (M-Series) or the...