APC Easy UPS On-Line 230V (SRV2KRIRK-E) For IT professionals in small to medium businesses, the SRV2KRIRK-E provides advanced power protection in unstable power conditions, ensuring consistent and reliable connectivity APC Easy UPS On-line is a versatile, high quality, cost-competitive UPS, developed to handle a wide input voltage range and inconsistent power conditions, delivering quality power to millions of IT professionals around the world. That’s Certainty in a Connected World.