Check the listing for details. Olson Technology LP-PS-AC, LaserPlus AC Power Supply Module. Condition: Used. Listed at 499.97 USD. Features: Automatic sensing of input AC voltage (90-264 VAC) for ease-of-installationIEC power connector ensures worldwide power cord availabilityEach chassis requires one power supply to provide +5 VDC to application modulesEach chassis accepts a second optional power supply for hot failsafe backupMix-and-match AC and/or DC modules in the same chassis for maximum redundancyPower supplies are fully isolated, eliminating single source of power failureFront Panel status LEDs: Power, Chassis Temperature, Summary Alarm for modulesSingle-slot width, plug-in, front-access design features hot-swap module capabilityChassis-based plenum with four large fans creates more airflow and better reliability than module-based fans; if fan failure occurs, power supply remains in operation New and Used Items: -All Items listed as new and used are eligible for returns within 30 days-Items must be unused(upon receiving item) and in the same condition it was received-All returns must be in original packaging -Customer is responsible for cost of shipping