Buying a used Dahua NVR - yes or no?

If you can ask for the model number I would check to see if there are any firmware updates available for it. Power supply is another concern but usually you can find replacement ones dirt cheap.
Also when you get it do a factory reset on it, don't use any default passwords or passwords that are provided with the NVR.
Here's the firmware search tool
 
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If you can ask for the model number I would check to see if there are any firmware updates available for it. Power supply is another concern but usually you can find replacement ones dirt cheap.
Also when you get it do a factory reset on it, don't use any default passwords or passwords that are provided with the NVR.
Here's the firmware search tool
Still waiting to see what firmware it has, as I didn't even receive the unit yet. I planned on doing a factory reset.