Remember that expansion can mean upgrading your server or adding peripherals, with this definition almost every system will experience expansion sooner or later. Tsi Power gets this point. The following is a summary of the conclusions reached in the comparison section. A summary table is included between the primary and secondary conclusions section for quick reference. All the units came in under the price cap.
All units are under the maximum price.
All units support Windows 3.1. APC's Smart-UPS and Fenton's Powerpal both offer full automatic voltage regulation, which protects the computer and peripherals against spikes, sags, gaps and brownouts. In terms of phone lines and terminals, Tsi Power's UPS-600 offered the most comprehensive options. In terms of operation and the status indicators for the batteries, Tsi Power offered the widest range of options in this area as well. APC's unit offers the best VA rating, but also carries the highest price.