Neuro Linker Prop (from Accel World) by nimaruichi on DeviantArt

NEURO- LINKER by sigrid lin

Between these two gadgets I'd say Neuro linker :D

Brain Burst, Accel World Wiki

gear - Seed/Nerve

Gonna try and explain if this might be possible with my VERY basic understanding of technology currently (explained in the comments btw!) : r/BoFuri

Neuro LIFE Institute - Did you know that Brain Derived Neurotrophic Factors (BDNP) are proteins that help with the development (differentiation) and protection of brain cells in many cases? Linker R, Gold

Accel World Collection Blu-ray Review • Anime UK News

So just how advanced is the technology in Naruto Universe? They

Therapeutic Advances in Neurological Disorders: Sage Journals

Brain Sciences, Free Full-Text