Industrial Shields Raspberry Pi UPSberry is a Plug-and-Play UPS smart shield including a Real Time Clock (RTC) for Raspberry Pi. This Raspberry Pi UPS shield offers a 10 second UPS saver using input from Raspberry Pi. The Raspberry Pi operates at 12Vdc or 24Vdc supply voltage. This Raspberry Pi can avoid any SD corruption issue and is compatible with all Raspberry Pi B versions.