
Wooting
80HE
Elite gaming performance, deep customization, but divisive typing feel.

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Just go for red or black switches?? I have a red dragon trundle k668 keyboard with red switches that's quiet as hell. I didn't buy it specifically for quietness but because it was supposed to be a mix of blue and black and it's pretty much in that space. No bump no click and you can go as fast as you'd like. I love mine ❤️
The only viable option I can think of for Full size mechanical keyboard is Redragon K668, but that is also 20% over your stated budget. If you are tight on budget, consider Evofox ronin or stick to cheapest possible full size wired keyboards from Redragon and Cosmicbyte, namely K551 Vara and Vanth respectively.
End of reviews

Wooting
80HE
Elite gaming performance, deep customization, but divisive typing feel.

AULA
F75
Budget king for thocky sound, but layout and software flawed.

AULA
F75 Max
F75 value with screen, but wireless and key layout issues.

AULA
F99 Pro Mechanical Gaming Keyboard
Value full-size with numpad, great typing, but poor software.

Keychron
K2 HE Wireless Magnetic Switch Custom Keyboard
Affordable HE with premium feel, but limited switch options.

Ranked #1
Wooting - 80HE

Ranked #1
NuPhy - Air60 HE Magnetic Switch Gaming Keyboard

Ranked #1
Logitech - G19 Programmable Gaming Keyboard with Color Display

Ranked #1
Keychron - K10 Version 2 Full Size 104 Keys Bluetooth Wireless Mechanical Gaming Keyboard