Abstract: A power conditioner assembly includes: first and second brackets and a power conditioner. Each bracket includes a rear portion adapted to attach to a rear portion of an equipment rack and a front portion that extends frontwardly. The power conditioner includes a housing having a rear panel, a first side panel mounted to the first bracket and a second, opposed side panel mounted to the second bracket. The power conditioner is mountable to the brackets in a plurality of orientations including: a rearward orientation with the rear panel oriented substantially vertically; and at least one angled orientation with the rear panel at an oblique angle to vertical. The brackets may also be adapted to attach to other mounting surfaces and/or other brackets may be provided for this purpose to provide additional mounting options.