La View has some decent Dahua OEM cameras under it's Saturn line up.
The 8MP turret specs appear similar to the IPC-HDW4831EM-ASE
use the LaView 20% off discount code PRIME20 to get these to a decent deal
Note these have 1/2.5" starvis sensors, and many of us are waiting to see a 1/1.8" sensor in a 8MP turret
Camera 2 pack:
LaView Saturn Series 4K UltraHD 8MP Turret Dome Ourdoor PoE Audio IP Camera,2.8mm, h.265+, True 120dB WDR, IP67, MicroSD card slot, IVS,ePoE, 2-pack
SKU LVS-DHPTK3682W-28-2P
LaView Saturn 3K 6MP PoE IP Turret Cameras
4 cameras + NVR
LaView Saturn Series 8CH 4K NVR with 4x 4K 8MP Audio Turret Outdoor PoE IP Camera, 120dB WDR, IP67, IVS, HDD not included
SKU LVS-KN6284H8
$495.20 after 20% off
notes: I do not know if cables are included, and if they are if they are quality cables. LaView also has a deal on a 4TB WD Purple HDD today... as this NVR is a Dahua OEM NVR you should be able to add the Dahua OEM starlight and starlight+ models to this NVR. Other option that is well liked is to get a used i5/i7 PC with
Blue Iris and a PoE switch ( LaView also has some of those on sale .. )
LaView Saturn 8CH NVR + 4 4k IP Camera