This all aluminum open-air frame for the ONDA B250 motherboard (8 GPU) is $65 USD .


PayPal only. Shipped from Washington state, US.
The
optional fan support beam is +$20, two for +$35 or four for +$50 (includes all required fasteners for 25mm thick fans).
Lead time is currently 2-3 business days.
What all would I need if I wanted to utilize all 12 GPUs? I imagine the tray would need to support two rows of fans, with the 2nd row cooling the 4 additional GPUs? Would there be room for two power supplies as well?