Check the listing for details. Samlex Desktop Switching Power Supplies - SEC-1223BBM-CE 240V. Condition: Open box. Listed at 150.00 USD. Samlex Desktop Switching Power Supplies - SEC-1223BBM-CE The SEC-1223BBM-CE combines the reliability of our classic SEC-1223 power supply with the reassurance of the BBM-1225 battery backup module. This combined unit automatically provides uninterrupted DC power from an external backup battery (not included) to your critical load in the event of an AC power outage. Once AC power is restored, the SEC-1223BBM-CE will continue to seamlessly supply DC power to the load while providing a current limited charge to the backup battery (not included).Reliable, 12V Nominal DC Uninterruptible Power Source (DC UPS) in conjunction with external 12V Lead Acid Battery backup circuitProtected against short circuit, overload, over voltage and over temperatureCooling by temperature controlled fan improves efficiency and prolongs life of the fan IMPORTANT!!! THIS IS THE 240V VERSION WHICH MEANS IT WILL NOT PRODUCE THE SHOWN LEVELS REALIABLY ON A 120V SYSTEM! DOES NOT COME WITH A POWER CABLE BC IT CAN WORK IN US OR UK (They're like $5-$10 on Amazon and I took $100 off the average price to account for that).