Eathtek Replacement 300W 661-7170 PA-1311-2A Internal Power Supply for Apple iMac A1419 2012 27" Series Compatible Model Numbers: Apple iMac A1419 2012 27" Compatible Part Number: 661-7170 PA-1311-2A Replacement and high quality,Replace your faulty, cracked or broken Internal Power Supply Each Internal Power Supply is tested before shipping All pictures are taken from the real item, please check carefully before bidding.