(01-16-2021, 12:21 PM)Crimson Nape Wrote: The best I can tell it is a 4 amp - 24 volt power jack connector.   There is a 2.1x5.5 DC power jack on Digi-key.  Its P/N is: 486-3380-ND and sells for a $1.64.

Also, here is a PDF listing of the most common power jacks, https://cdn.sparkfun.com/datasheets/Prototyping/ADC-H-028-1.pdf

I hope this helps.

(01-16-2021, 12:27 PM)Sleeprider Wrote: Call Supplier #27 who is an authorized repair facility. The CEO  has been a member on this and other forums, currently inactive. They might sell you the part.  He http://www.apneaboard.com/forums/Thread-Repair-experiences?pid=98309#pid98309  self-identifies in this post

(01-16-2021, 01:01 PM)Crimson Nape Wrote: I read your post above immediately after I created the previous post.   The board that you refer to is more than likely a Resmed manufactured design.  I've gone back and measured my power supply plug and have found that the one that I listed above isn't correct.  My power plug measures 7.3 mm OD with a 5.0 mm ID and a recessed pin that I am unable to measure.  I will continue to look for a replacement.  I'm sure someone else will be needing this in the future.