The Riello 550VA Plug Dialog UPS from Critical Power Supplies with a built-in battery designed to give 6 minutes runtime at full load. Typical applications: PCs, workstations, terminals, Electronic Point of Sale (EPoS), SoHo applications and domestic electronics including satellite receivers, Hi-Fis, hubs, routers and small servers.

Plug Dialog has four UK output sockets for easy installation (and can be wall mounted), a USB-type UPS communications interface and telephone/modem line protectection.