Used - Very Good: BIOSTAR TB85 LGA 1150 Intel B85 SATA 6Gb/s USB 3.0 ATX Intel Motherboards for Cryptocurrency Mining (BTC) - Newegg.com
BTC PRO Mining Lga 775 Motherboard For Biostar TB85 Desktop 6GPU, I E, Professional B85 LGA 1150, DDR3 16G, SATA3, USB3.From Hellopcpartsstore, $109.29 | DHgate.Com