PSU PSU Tray Overview Materials As IllustratedGeneric Parts Qty Note M4 x 6mm SHCS 4 No longer than 8mm. Mean Well LRS-350-24 1 PSU Mount - LRS-350 - Left HSI.stl 1 PSU Mount - LRS-350 - Right HSI.stl 1 Parts Qty Note M4 x 6mm SHCS 4-8 No longer than 8mm. Compatible power supply 1 Left PSU mount 1 Right PSU mount 1 Directions 1) Set the power supply with the terminals facing downwards and away from you. 2) Place the left mount (labeled with an 'L') against the left side of the power supply. The printed 'L' should face upwards, as pictured. 3) Use two (2) M4 screws to attach the tray mount. 4) Set the right tray mount against the opposite side of the power supply. The 'R' should face upwards. 5) Secure using two (2) M4 screws. Reference Install PSU Overview Materials Parts Qty Note M3 x 12mm SHCS 4 Directions 1) Turn the base over so that the version numbers are visible. 2) Slide the PSU assembly into the base with the terminals facing upwards and towards the rear. We want the terminals accessible when the case is turned upside-down. 3) Use the inset holes in the sides of the base and four (4) 12mm M3 screws to attach the base to the PSU tray. Note: Button head screws will not fit. Reference