PC Power Cooling has just released an uninterruptible power supply (UPS), the Pro-Source 1500 UPS, somewhat sidestepping out of its element into an area traditionally dominated by APC, CyberPower Systems, and Tripp Lite. Also known as a backup power supply, UPSs are one of the oft-most overlooked components, yet arguably one of the most important investments of any PC build, not only to provide a power source in case your electricity goes out, but to ensure a clean flow of power to your pricey parts. Will the transition from PSU to UPS maker be a smooth one for PCPP?