One thing I would caution against is the use of power bars with RF filters or surge protectors. Any use of cords that include filters or surge protectors combined with a UPS can cause odd behavior or damage to the UPS. Plug the UPS directly into the wall, not a power bar and not another UPS. I'd advise against using any cords or power bars to create extra outlets with a UPS. If it must be done, keep them as short and plain as possible. It's better to obtain a UPS with adequate outlets.