This is for my Roku Ultra Model number 4670X.
This is what it says on the original adapter that I have.........
The answer I'm looking for will be something like 99.99mm x 99.99mm
(External diameter x internal diameter)ROKU SWITCHING ADAPTERMODEL: ADS-18FSR-12 12018EPCUINPUT: 100-240V ~ 50/60Hz, Max.05AOUTPUT: 12V 1.5AMade in ChinaShenzhen Honor Electronic Co.
Since you have two adapter why wouldnt you simply splice one plug cord onto the other?
Amazon has plenty of gizmo's to angle your blades.
From what I measured using Vernier calipers the outer diameter is 4.7-4.5mm depending on how hard I squeeze. Inner diameter 1.7mm-1.8mm
Length 8mm this for my Roku ultra 2020 model 4800
its a bit of an older string.
the barrel plugs have to fit precisely.