Ideal for the protection of critical servers, switches, routers and storage devices, our range of uninterruptible power supplies (UPS) is sure to have what you need. Find peace of mind by choosing the right uninterruptible power supply for you, with our full range of accessories also available. What are Uninterruptible Power Supplies (UPS)> An uninterruptible power supply or uninterruptible power supply often shortened to UPS is a component that is used as an emergency power source when power fails. It provides nearly instant protection from power outages by supplying the energy stored from a battery inside, this means it has a relatively short time power supply. A UPS system is not a substitute for a backup generator or normal power supply that bridges the gap in between a power outage and the backup generator. We also carry a variety of accessories for UPS systems such as a replacement battery or wall or rack mounting kits.