The round pad switch follows the same basic principals as the AbleNet switches (above) and at 80mm has a similar diameter to the popular JellyBean. The advantage of the Pad switch is that the activation area is made of a soft, but strong, spongy material that many people will find nicer to touch than the hard plastic of an AbleNet switch. Often this applies to head switch users.
The Round Pad switch needs 200g of pressure applied to it in order to activate - that's quite high when you compare it to the Jelly Bean (65g) or the smallest lever switch (40g).
I have always found that this switch remains more reliable across its entire activation area than the AbleNet switches which can sometimes become less responsive around the edged over time.
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