Cosmic Byte CB-GK-16 Firefly Per-Key RGB TKL Mechanical Keyboard with Swappable Outemu Blue Switch, Macros, Software (Black)

I’ve been using the Cosmic Byte Firefly CB-GK-16 (Blue switch variant) for about 2 months now. Honestly, I didn’t expect this level of quality for the price.The build feels sturdy, with a metal top plate that gives it some good weight doesn’t slide around. The switches are Outemu Blues, so yeah, they’re clicky and loud. If you’re into that tactile typing feel, you’ll love it. Typing feels satisfying, and key response is crisp. Definitely not silent though, so maybe not the best for shared rooms or late-night use unless your roommates are cool with it.The RGB lighting is bright and clean. Tons of modes to cycle through using the keyboard shortcuts, even if the software isn't the most polished.It’s tenkeyless, which is perfect for my setup. Saves space without sacrificing comfort or usability. I use it for both work and gaming (Valorant, Apex), and it holds up really well. Nothing has gone wrong till this dayCouple of small things:The keycaps are decent, but don’t expect premium material. They're fine for daily use though.Blue switches are loud not a downside for me, but something to be aware of.

I've been using the Cosmic Byte CB-GK-18 Firefly mechanical keyboard for over a week now, and overall, it's an excellent piece of hardware. The build quality is solid, the key response is great, and the per-key RGB customization through the Windows software is great — especially at this price point.However, there's one major limitation that Linux users (like me) should be aware of:While you can define a custom per-key RGB layout and save it to the keyboard's memory using the Windows app, there is no keyboard shortcut to recall this custom mode once you switch to one of the preset lighting effects using Fn + Insert or similar function key combos. You’ll need to reopen the Windows app each time you want to restore your custom lighting — which is very inconvenient if you're primarily on Mac/Linux.If Cosmic Byte adds the ability to assign a shortcut to toggle back to the user-defined RGB profile or lets users set it as the default on startup, this would easily be a 5-star product.Pros:1. Excellent build quality and design2. Smooth, responsive mechanical switches3. Fully customizable per-key RGB (via Windows software)4. Onboard memory saves lighting profilesCons:1. No keyboard shortcut to return to custom RGB lighting once switched2. Software is Windows-only; not ideal for Linux usersVerdict:Highly recommended for Windows users who want custom RGB control. If you're on Linux, be aware of the current limitations and plan accordingly.

The Cosmic Byte Firefly is a very good keyboard indeed.Pros-*Build quality- It is a very solid and well built device with the top part in steel and the bottom part in plastic. It is pretty heavy but it is a mechanical keyboard so no surprises there.*Accuracy- The keyboard is very accurate for typing.*RGB-RGB is definitely very good. It has a selection of many single colors and mixed ones too.*Hot-swappable keys- The keyboard has hot swappable keys which means that the switch itself can be replaced with other Outemu switches. I'm not sure if other brands switches can be used.Cons-*Typing sound- If you are going to buy this keyboard and type a lot, do not buy the blue switch version. I really underestimated the sounds of the blue switch. It sounds like an actual typewriter. It is pretty much annoying as it is making too much noise. The red switch version can be better if you type a lot as it is more quiet. Also, other people may find it disturbing. So buy blue switches only if you have a separate room.*Dedicated Caps lock indicator-It actually does Caps lock and scroll lock indicators in the keys itself, but it is not visible if the RGB color is white as the indicator colors are also white which can be confusing. So I would suggest Cosmic Byte to put dedicated Caps lock and Scroll lock indicators.*Portability- The keyboard is huge and heavy which makes it pretty hard to carry it around.The packaging they sent the keyboard in was very good. It came in a cardboard box inside a sealed bag.Overall a very good keyboard for 2000-2500₹.

The media could not be loaded. This feels so good. I might try to mod it in the long run, replacing the switches and the key caps and also try lubing or filling up the housing with foam or silicone. But considering the weight, it might be already filled up. I am so glad this keyboard did not have the 'switch to GOD MODE' on the spacebar, like the others from this company have. It looks so tacky and weird. The RGB functions are quite good allowing for per key illumination and colouring, although they could have used some brighter LEDs for it and the keys look dull without the brightness set to max. I might try fixing some pudding style keycaps for better illumination. Overall this keyboard is the best for the price, with future upgrades via hot swappable keys sealing the deal.