stackable open mining rig frame minings eth/etc/zec ether accessories tools for 6/8/12 gpu crypto coin bitcoin rack only

1. this product is a graphics card holder made of cnc sheet metal that can be stacked. 2. easy to install and strong structure.support dual power supply. 3. designed according to standard holes of a-motherboards, graphics cards, hard drives, and power supplies. 4. the product is an empty shelf without fans, switches and lights. 5. 6 graphics card spacing 10cm, 8 pitch graphics card 8cm, 10 graphics card spacing 6cm.