By Xah Lee. Date: . Last updated: .
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photos above from

datahand jesse vincent g24fj-s1270x953
3648×2736 [image source flickr by Jesse Vincent]

This device, is no good.

because fingers are not designed to move in sideways.

Better systems for efficient input or chorded, are Stenotype, PianoText, Michela Chorded System.

Alternative Input System

stenotype machine 2015-53567-s289x216
Akai MPK Mini MKII keyboard controller 71-s325x192
michela keyboard 17605
Michela Chorded ⌨
datahand wnx34-s289x217
azeron keypad 4t547-s249x251
Azeron Keypad
lalboard n2b3q-s366x171
bat keyboard a831d-s298x210
BAT Chording
right handed frogpad 60117-s216x289
georgi keyboard fj4y2-s289x217
Georgi Steno
ginni keyboard k5p8m-s322x194
Ginni Chorded 10

If you have a question, put $5 at patreon and message me.