Brackets to mounts your power supply vertically on your Kossel V-Slot rail.. Design for the 2020 V-Slots. Optimal clearances for V-Wheels. Power Supply brackets can be mounted with the outer or inner holes. Mount brackets to rail first, aline holes with PS, tighten, then attach PS to brackets. Pizza Donations (BTC): 1DEciQkvjqUfiMgKkrhAmPtwLfjgJvd9JL Thank-you!