Redragon K521 Upgrade Rainbow LED Gaming Keyboard, 104 Keys Wired Mechanical Feeling Keyboard with Multimedia Keys, One-Touch Backlit, Anti-Ghosting, Compatible with PC, Mac, PS4/5, Xbox

A steal for the price
This is a very good full keyboard, with inverted T arrow navigation keys, numeric keypad, home/end/pgup/pgdown/delete/insert grouping, and 12 function keys. It’s also backlit with a good variety of lighting modes. So far I’m really happy with it. Could it be better? Sure; it lacks a wrist rest, ergonomic layout like a Microsoft Natural, and doesn’t have dedicated media control keys (although this last point isn’t a big deal for me since this keyboard is for use with a computer that won’t be used for multimedia).However, keyboards are a very personal thing and a big deal these days, so here are some more details to help you understand this keyboard’s features.Weight: It’s not as heavy as the dedicated gaming mechanical keyboards that seem popular now with gamers and programmers. But it’s not flimsy either. Light enough to not be much hassle if you’re going to be traveling with it.Key feel: This keyboard is not one of the loud clicky ones. It does feel more tactile than a typical membrane keyboard, and the keys have a nice travel when you press them, but the click sound is very soft. These are regular-style keys, not chicklet keys.Lighting: I wasn’t too worried about have top RGB features, but sometimes if it’s darker in the room I do like some backlighting. This keyboard is a nice compromise between keyboards that have only white backlight, and keyboards that have a full software control app that let you customize everything. There is no software with this keyboard, it has several modes all configured using the function keys. Here are the lighting modes:- Lighting off/on- Neon mode: multiple colors light up three static zones on the keyboard. There are a few combinations you can select. The colors stay the same in the zones and don’t change.- Spectrum mode: 7 colors rotate and fill the entire keyboard continuously. So it’ll be lit red, then fade into purple, then blue, then green, etc.- Static mode: You cycle through and pick the color you want of the 7 supported colors, and it will stay lit continuously with just that one color.There are brightness and breathing effects that you can configure for each of the modes.I only use static mode, but gamers might like the other ones. I saw more expensive boards that only did spectrum or only had one color.Key visibility: The keys are not painted so they’re a little hard to read in poor lighting if you don’t use the backlight. However, I did like that the symbol keys had the correct placement for lower/upper case characters. I have seen many expensive keyboards from Razer, Corsair, Alienware, etc., that often invert the upper/lower case labeling for symbol keys and number keys. If you’re an experienced typist, you’ll work around that, but it bugs me when I see it. I found out later that this is an intentional design decision so that the more commonly used lower case symbol is more visible when backlit (the lighting doesn’t cover the entire key and ends up emphasizing whatever character is in the upper case position). But you won’t have to worry about that with the ReDragon.Key layout: After looking at the huge variety of keyboards on Amazon, you’ll notice that some smaller keyboards don’t have the numeric keypad or the six-key navigation group. Or that some have that ANSI style keyboard with the bigger Enter key but then put the slash key somewhere else. Or some that have compressed distance between keys or even smaller keys to make it more compact.This keyboard has an ISO keyboard layout with 104 full-sized keys. The key spacing is about a quarter-inch, which is similar to other full-size keyboards I’ve used.For the price, I think this is a great peripheral. Longevity would be my only concern, and I’ll update this review later if I run across any issues.

Good keyboard
Works great, lights up with just two options: fade on and off and static, and has a nice clicking sound when you press the keys.

Raised keys and the awesome colors.
I loved the raised keys, and I LOVE all the lights. I am an older 🙂 Lady who loves color. Don’t need to be a gamer to Love color. It helps me see even though I am quite a good typer. I wanted wireless but you still need a usb port anyway, this was cheaper to have it wired so I chose this and am very satisfied. And at night if I just want to put my pc to sleep and myself I can turn the lights out.

Bought 2 of these keyboards. Both stopped working 5-6 weeks after purchase.
When I purchased the first Redragon K509 keyboard, I also purchased a Redragon S107 keyboard and mouse combo at the same time. The keyboard in that S107 combo looks identical to this K509 keyboard. It even has the exact same instructions, looks identical, and behaves exactly the same. This K509 keyboard appeared to be a good value. I felt the quality was good for the price. The LED’s were not fixed colors (which is good), and the LED’s could be set in many colors, in “breathing mode” and constant brightness. However, when set to constant brightness, the lights dim a significant amount. I could live with that.I would give this K509 model a fairly high rating, but after 6 weeks, the first keyboard stopped working. Windows would no longer recognize the device. I tried plugging it into different USB ports, but that made no difference. I tried using the keyboard on 2 other PC’s, and they had the same trouble recognizing the device. I figured I just had bad luck, and ordered a second, exact same keyboard. After 5 weeks, this second keyboard started having the exact same trouble. Windows would no longer recognize the device. It couldn’t even tell it was a keyboard. Again, I tried this keyboard different USB ports and on two other PC’s. It would not work no matter which port or PC I plugged it into. Other devices, including other keyboards, work on each of the USB ports I tried on the 3 different PC’s. I also have a Redragon S107 Keyboard that is part of the Redragon S107 Keyboard/Mouse combo. That keyboard still works great, and looks and behaves identical to the K509, except for the label underneath the keyboard. The S107 keyboard (not this KB) works just fine on all 3 PC’s, and I still use it without trouble, to this day. I have contacted the manufacturer and attempted to get support for this product, multiple times, and they said that it was a problem with the USB port, and to plug into another port. I had tried this, as well as trying the keyboard on multiple USB ports on two other PC’s. The manufacturer would not admit that the problem was with the keyboard. I was given instructions how to remove the unrecognized device in the Windows “Device Manager”, and let windows recognize the device again. This had no effect. After the problems began, each time I plug in the keyboard, it would light up for a few seconds, the PC would make the typical “USB device attached” sound, then the light would turn off. Two or three seconds later, it would light up, PC makes the sound again, and lights turn off. It would repeat this for various number of times, before the keyboard would eventually have the lights stay ON, and look as if it was working, but none of the keys would respond. When I check Windows 10 “Device Manager”, I would see the keyboard listed as “Unknown USB Device (Device Descriptor Request Failed)” The Device Status read as, “Windows has stopped this device because it has reported problems. (Code 43) A request for the USB device descriptor failed.” I like this keyboard. I would purchase another, but I worry that there may be a design or manufacturing flaw, causing an increased chance of the device failing to be recognized by the PC. I have only tried two of these keyboard, so I cannot be sure. But 0 out of 2 is not a record that would inspire the confidence for me to recommend this keyboard to anyone.I get this exact same behavior and error on all 3 PC’s… an HP desktop, a Dell/Alienware desktop, and a Microsoft Surface Pro 4 Tablet PC. My Redragon S107 Keyboard and mouse combo continues to work just fine. I have an older USB keyboard being used instead of the two Redragon K509 keyboards. Neither K509 keyboard was damaged, dropped, or misused in any way. They get plugged in, and remain in a fixed position from that point forward. No food or drink is consumed near them, because they are located around other sensitive equipment.I should have attempted a product return on Amazon, but it was already outside the window of time I could return or exchange the product. That is on me. However, the manufacturer still would not admit that the keyboard was defective in any way, in spite of the obvious evidence to the contrary.

The Redragon Dyaus K509 is an excellent choice for gamers seeking the perfect balance between affordability and performance. Despite being a membrane keyboard, it offers a **semi-mechanical feel**, providing tactile feedback and a satisfying keystroke that closely mimics mechanical switches. This makes it ideal for both gaming and typing, delivering a responsive and comfortable experience.One of its standout features is the **vibrant RGB lighting**, with numerous color modes and dynamic effects that add flair to any setup. The low-profile, ergonomic keys ensure minimal fatigue during extended sessions, while the build quality is impressive for the price. If you’re looking for a budget-friendly keyboard with a **mechanical-like typing experience**, customizable RGB, and reliable performance, the K509 is one of the best options available.

So my keyboard doesn’t seem to fit the features described on Amazon, or more importantly, on the Red Dragon website.My keyboard product sticker on the bottom clearly states model RDK509 DYAUS-K509-1.Im looking at photos and my keyboard certainly does not have any edge lit features.Its a good keyboard, very quiet, with Color LED features as described (other than edgelit)When the PC is switched off or rebooted,(USB powered off) it reverts back to colour changing mode and does not remember my preferred setting.