Acer C720 Chromebook Keyguard MacBook Laptops USB plug-and-play dedicated math keyboard

USB plug-and-play dedicated math keyboard with calculus symbols that works alongside your computer keyboard

but we haven't tried it on all of them

Examples of cases that could be an issue are

This keyguard is secured with provided Dual Lock fasteners

Fits the 300e 2nd Generation and other Chromebooks that share the same keyboard

Acer C720 Chromebook Keyguard MacBook Laptops USB plug-and-play dedicated math keyboardKeyguard for the Acer C720 11. 6 Inch Chromebook, US English version. Should also fit the C731 C733, the C736, and other Acer models that use the same keyboard. The default material is 3 16" clear acrylic. 1 8" high impact PMMA is available for users who require the openings to be shallower, but is not recommended, since it is more flexible and may become warped or dislodged. There are also a number of 1 4" thick materials available. No attachment