

🎮 Small Pad, Big Impact: Your ultimate 3-key power play!
The PCsensor 3-Key Mini Keypad is a compact, wireless mechanical keypad featuring 2.4G connectivity, fully programmable keys with RGB lighting, and a rechargeable battery lasting up to 3 months. Built with durable ABS and high-quality mechanical switches, it supports multi-platform use and offers both wireless and wired Type-C USB connectivity, making it perfect for gamers and professionals seeking customizable, portable control.




| ASIN | B0C4YT9SCM |
| Additional Features | Backlit |
| Best Sellers Rank | #2,197 in Video Games ( See Top 100 in Video Games ) #199 in PC Gaming Keyboards |
| Brand | PCsensor |
| Built-In Media | USB Cable |
| Button Quantity | 3 |
| Color | Black-2.4G |
| Compatible Devices | Gaming Console |
| Connectivity Technology | USB-C |
| Customer Reviews | 4.0 out of 5 stars 399 Reviews |
| Enclosure Material | Acrylonitrile Butadiene Styrene |
| Hand Orientation | Ambidextrous |
| Item Height | 1.49 inches |
| Keyboard Backlighting Color Support | RGB |
| Keyboard Description | Gaming |
| Keyboard Layout | QWERTY |
| Manufacturer | PCsensor |
| Model Name | MK321G |
| Model Number | MK321G-BL |
| Number of Keys | 3 |
| Number of Sections | 1 |
| Power Source | Battery Powered |
| Series Number | 321 |
| Special Feature | Backlit |
| Style Name | Classic |
| Switch Type | Linear or Clicky or Tactile |
| Unit Count | 1.0 Count |
| Warranty Description | one year warranty |
C**.
Incredibly Customizable Little Keypad, Exactly what I Needed, Great Tactile Response as Well!
This little 3-key wireless keypad is absolutely perfect for my gaming setup and does exactly what I needed it to. I like to play using a controller, but occasionally need quick access to keyboard functions, and instead of dragging my full keyboard into position, this compact pad solves the problem easily. The build quality feels solid, and the mechanical switches are satisfyingly tactile and clicky. It offers both bluetooth wireless mode and a wired mode, complete with a great-quality cable and dual port options depending on how you want it positioned. Battery life seems to last a few days even constantly on, but can also be switched off manually to conserve power. Once you install the customization software (link mentioned in manual), you can fully remap the keys, set macros, and even use three programmable layers that are easy to switch between, with RGB lighting changing to indicate which level you’re on (so you really have 9 programmable keys). It's portable, customizable, responsive, and a surprisingly great value for the quality. Exactly what I was looking for, and highly recommended!
K**Y
Kobo Libra Colour friendly
Works with Kobo Libra Colour! It took about 10 minutes to download software, program the buttons and connect to my Kobo. It comes with blue clicky switches. The switches are hot swapable and compatable with the basic Gateron switches. You can change out the keycaps. I have not found a way to actually do anything with the lighting effects. In the software it only gave me the option to have the lighting on or off. It doesn’t feel very sturdy, but for $20 + some extra switches and keycaps I had laying around this will work. Things to note, it took so so so many tries to get it to pair to my Kobo. Unsure if others had a similar issue or not, unsure if it has to do with Bluetooth signal strength from the mini keyboard? But it just wouldn’t show up, on what I think was the 23rd try it finally shows up as an option to connect. I was able to set mine up to turn to next page, go back a page and Lock screen. Note that lock screen will only work if you’ve already been using it within the last minute or so. I believe this would have to do with Bluetooth connection. But it’s worked for me when I’m too comfy to turn the page or when I’m reading on my treadmill and have the Kobo on a stand.
C**4
Worked for 5 seconds and now has become sentient and refuses to operate
Worked for abut 5 seconds, and now refuses to do anything. I can pair, I can connect via USB, I can see it in the software, I can program it in the software. And then no matter whether I use it in bluetooth or in wired mode, it doesn't matter. Literally nothing happens. I can press the page button, and nothing happens (despite making two pages of keys). It just makes pretty colors and does jack ****. Returned. I'll try a brand that isn't garbage.
A**L
Solid price and functionality
I bought this mainly to use as a page-turner for my Boox devices (Nova Air C, Palma 2 Pro, Tab Ultra C) and even my Google Pixel 9 Pro XL. Setting it up and programming the keys was surprisingly easy. I used the Elfkey app on my Windows PC, connected the keypad with the included USB-A to USB-C cable, and programmed the first layer with LEFT, REFRESH/F4, and RIGHT—all set to “single.” I also turned off the lighting options to save battery. Later I learned it actually supports three layers (Red, Blue, Green), each with its own set of key functions and modes (single press, trigger, continuous). I’ve only needed single presses for page turning and basic navigation. Bluetooth, however, is definitely quirky. Sometimes it works in the OFF position, sometimes it needs to be plugged in, and sometimes it only cooperates in the ON position. I haven’t fully figured out the pattern. It also didn’t like being paired with multiple devices, so I followed another reviewer’s advice and dedicated each keypad to one device—hence, I ended up buying two. I haven’t tested battery life yet since I’ve mostly been programming and troubleshooting Bluetooth, but I plan to turn it off when not in use. The clicky keys are great—very satisfying—except at night when my SO is asleep. I’ll be swapping them for quiet switches soon. I also added some cute keycaps I already had. Overall, I’m pretty happy with it. I took off one star for the finicky Bluetooth and because I wish they offered a quiet-key option out of the box. Other than that I think the price and most functionality is solid.
O**K
Works good... But...
I got it for the GPD Win 4, to have some extra buttons on the back. It would have been fine, and perfect, if I didn't need the action of the keypress to activate the gyroscope. With the particular machine that I got two of these for, between the internal key software, rewasd key-mapping, this products keymapping, and one more that I was using for on-screen buttons, I could not get the activation of the gyroscope with a button push of this product. But, I have limited ability, and may have found a solution if I "super tried". It is a great product. It was fast enough for me, with the Bluetooth response time, with gaming. However, they do offer the same product with 2.4gh, something or other. Which, should be faster. Plus, if needed a direct cable would be fine. Lots of possibilities with this item. I will absolutely purchase it again, in the future. But, with the 2.4gh option. Even though more expensive, it can come in "handy". I am glad anyone offers, such an item. I would like the same product, but with one key. There are one key products, like this, but none with Bluetooth or battery. Some people say the software was hard to get. But, for me it was easy, and the software worked well. Very nice key presses. Good product. Don't know about the lights. Didn't test that.
D**’
Works well for ereader. No issues so far
It works very well. I found a tiktok video that helped me program it to use with my Boox Palma ereader. I have it set up to go forward, backwards and refresh the screen. I changed out the keycaps for clear ones and glued some charms on there. I also used resin to attach a metal piece so that I can clip a keychain to it. I wish there was already a keychain slot or atleast a silicone case for it. The keys are nice and clicky and you can program it to only light up when you turn it on so it doesnt get distracting when reading in low lit areas. Havent had any problems with battery. The keyboard automatically goes to sleep after awhile of no use.
D**K
Works as expected, battery dies after 3 days.
Adding back one star for the great customer support from the team here. This is a good, simple-to-use product. The software that is used to set the the marcros, is pretty simple and can be used to quickly set up the keypad. The battery on this dies after 2 days. I thought this might have been a problem with that specific one so I exchanged for another one. I have the same problem with it dying after 2-3 days. That is 2-3 days on stand-by with light use.
K**B
Perfect for Communication
Good quality for the price. Easy to customize for what key(s) you want to program it to, and it can even work the volume and other media on your PC. About average bluetooth range and the color customization to turn the brightness or up or down same with key customization. It also has that nice mechanical noise when you press down on a key. I use this for volume and as a PTT key when I'm away from my PC and keep my headset on.
Trustpilot
4 days ago
2 weeks ago