7 GPU and 6 GPU motherboards

as alternative of the Asrock bro btc 1 or pro btc 2
found some of lower price 6 gpu and 7 gpu motherboards

7 gpu motherboards :

• MSI Z170A Gaming M5 130$
  
• MSI Z170A Gaming Pro Carbon 140 $
  
• Gigabyte GA-Z170X-GAMING 5 140 $
  
• ASRock Z170 OC FORMULA 233 $
  

6 gpu motherboards

• MSI Pro Z170A SLI 110 $
  
• ASUS H170 PRO GAMING 110.5 $
  
• MSI Z170A SLI Plus 115 $
  
• ASRock FATAL1TY Z170 PROFESSIONAL 135 $
  
• ASRock Z170 EXTREME4 138.5 $
  
• GIGABYTE GA-Z170X-Gaming 3 165 $
  

sure there is more motherboards but need more search time
if you have any of those please give a feedback