Fun fact: The Cadence braille display, made by Tactile Engineering, is manufactured in Lafayette, Indiana, USA, utilizing local Indiana and Midwest tech companies for its advanced components, with support from Purdue University connections. Might also be why it's priced closer to a standard 40-cell display per module, but I would rather support manufacturing that's here at-home (US) Probably unavoidable that some parts could be made elsewhere, like a specific microcontroler or other smaller piece, but from what I've gathered and info I read they are assembled and components for the cells manufactured here.
Fairly awesome, and again it's why I love supporting local, including the BTSpeak too which is at least north-American made and US serviced. By contrast I'm sure the larger companies do their manufacturing and assembly more internationally.