Just bought Cyberpower OR700 1U UPS (20lbs). Will I need to buy rack mount rails to also support the back or will the cage nuts at the front be enough to support the UPS?

cross-posted from: https://lemmy.ml/post/6830939

Just bought Cyberpower OR700 1U UPS (20lbs). Will I need rack mount rails to support the back or will the cage nuts at the front be enough to support the UPS?