A YouTube video demonstrates it.
Pertinent screensnaps:
That’s another reason to choose the Nexus 9 over a China tablet: Getting under the hood is easy.
He’ll be doing a rooting video soon too.
Previously here:
Nexus 9: Two New Videos
Nexus 9 Gets A Second Unboxing
Nexus 9 Gets Unboxed
New Video Of Nexus 9 Hands-On
Xiaomi Welcomes The Nexus 9
Xiaomi MiPad Versus Nexus 9 And iPad Mini 3
Third Nexus 9 Video Has AnTuTu Score
Second Video Of Nexus 9 Shows Speed
First Video Of Nexus 9 Is Ridiculously Artsy
Nexus 9: Hands-On In Vietnam
Nexus 9 Announced: Perspective
Alleged Nexus 9 AnTuTu Score
The Nexus 9 Leak Whirligig
New Nexus Tablet Is 4:3?
Rumored Nexus 8