1. Asrock H81 Pro BTC R2.0, G3220 CPU and 2GB DDR3. Open Air Mining Frame Supports 6 GPU's. Supports 4 120MM fans (not included)
2. Biostar TB250-BTC, G4600 CPU, 4GB DDR4 Open Air Mining Frame Supports 8 GPU's Frame will need new moungts made to keep both PSU's in pace aswell as new HD mount made or run on a USB and no need to worry. frame has 7 120mm fans mounted. 4 which are LED. was my main mining rig. and i never moved it so the mounts wasnt a big deal because the PSU's an HD jus layed in one place.
3. MSI H270-A PRO, G3930 2.9GHZ Celeron CPU, 4GB DDR4 Open Air Drawer Design Mining Frame Supports 6 GPU's. Supports 6 120mm Fans (not included) has 1 80mm fan by motherboard included.
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