These boards have been removed from mostly new MONITORS with broken screens and should work if properly installed. ACER SB220Q MONITOR AC ADAPTER (19V 1.3A) ADS-25SG-19-3. Please verify that your board part number is the same as ADS-25SG-19-3. The part number is the first number left of the /, or the sole number listed. Most often written in title as (part number / board number)