The Costco site links to the QC808 manual. I don't see a specific manual for the QC828 on Q-See's website. 
  
I am curious what else has changed, other than the 8 POE ports vs the 4 on the QC808. I may give them a call when I get some free time. 
  
http://qsee.custhelp.com/ci/fattach/get/151596/1379353385/redirect/1/filename/QC%20NVR%20Manual%20v2-5_web.pdf 
  
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