Two days later, Zotac Store replied to my email and said they sent out the correct power brick. Will take a week to get here. Not 100% confident it will be the correct one.
[Update] Got the replacement. Correct wattage but wrong connector.
Lesson learned.
[Update 2] After sending photos of power bricks, jacks and serial numbers, Zotac did end up 2 day shipping me the correct power brick.