When comparing Corsair Vengeance K70 RGB vs Vortex Core, the Slant community recommends Corsair Vengeance K70 RGB for most people. In the question“What are the best mechanical keyboards?” Corsair Vengeance K70 RGB is ranked 5th while Vortex Core is ranked 27th. The most important reason people chose Corsair Vengeance K70 RGB is:
The K70 uses Cherry MX Red key switches, which deliver a smooth, linear key response with a wide actuation zone. They have the responsiveness you need for perfectly executing double and triple taps, and there’s no audible click or tactile “bump.”
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Pros
Pro First-class mechanical switches
The K70 uses Cherry MX Red key switches, which deliver a smooth, linear key response with a wide actuation zone. They have the responsiveness you need for perfectly executing double and triple taps, and there’s no audible click or tactile “bump.”
Pro 16.8 million color backlighting
The Vengeances K70 RGB has a 16.8 color backlighting system that allows for so many color customization options that the possibilities are most likely endless.
Pro Special keys are textured
Special keys are of textured, red colors, which facilitates access to common functions without looking at the keyboard (for example, numbers 1 through 6, and WASD keys).
Pro Easy to clean and replace keys
Thanks to an included small wrench, that can be used to remove and replace the keys, the K70 is easy to partially disassemble and clean.
Pro Real hand scale
The size of the keys is ideal for standard to bigger sized hands.

Pro Mass market 40% keyboard
unlike most 40% keyboards, you can just buy this one. That's right! You don't need to assemble it! You don't need to solder anything!
Cons
Con Software is difficult to figure out
The CUE software the is needed to program the backlighting and keys is difficult to understand, making customizing the keyboard a cumbersome chore.

Con Mass Market keyboard
Odds are that if you're willing to go through the effort to get used to a 40% keyboard, you're already pretty excited about mechanical keyboards. You might be happier with a DIY solution

Con 40% Keyboard
Most users will probably have trouble starting out with this keyboard. You need to use function keys to access most of the symbols that you're used to being directly available.
