--- product_id: 485299596 title: "One Handed Mechanical Gaming Keyboard, 45-Key Fully Programmable Mini Keypad, Mini USB Macro Keyboard with Rotating Knob, RGB Backlit Red Switches, for Windows PC Gamers" brand: "koolertron" price: "£85.91" currency: GBP in_stock: true reviews_count: 5 category: "Koolertron" url: https://www.desertcart.co.uk/products/485299596-one-handed-mechanical-gaming-keyboard-45-key-fully-programmable-mini store_origin: GB region: United Kingdom --- # RGB backlight with 32 colors & 30 brightness levels Infinite-rotate programmable knob 16 macro keys with 349 commands One Handed Mechanical Gaming Keyboard, 45-Key Fully Programmable Mini Keypad, Mini USB Macro Keyboard with Rotating Knob, RGB Backlit Red Switches, for Windows PC Gamers **Brand:** koolertron **Price:** £85.91 **Availability:** ✅ In Stock ## Summary > 🎮 Elevate your game with precision, power, and programmable flair! ## Quick Answers - **What is this?** One Handed Mechanical Gaming Keyboard, 45-Key Fully Programmable Mini Keypad, Mini USB Macro Keyboard with Rotating Knob, RGB Backlit Red Switches, for Windows PC Gamers by koolertron - **How much does it cost?** £85.91 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/485299596-one-handed-mechanical-gaming-keyboard-45-key-fully-programmable-mini) ## Best For - koolertron enthusiasts ## Why This Product - Trusted koolertron brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Multi-Device Ready:** Built-in MCU stores 4 layers of profiles—switch computers without losing your custom setup. - • **Total Control at Your Fingertips:** Fully programmable 45-key layout plus 16 macro keys to customize every command and shortcut. - • **Dynamic Knob for Effortless Adjustments:** Unique infinite-rotation knob lets you control volume, lighting, media, and more with precision. - • **Vibrant RGB Lighting to Match Your Mood:** Customize 32 colors, 8 dynamic effects, and fine-tune brightness & speed for a personalized glow. - • **One-Handed Efficiency Meets Gaming Power:** Compact design with red mechanical switches optimized for quiet, smooth keystrokes during intense sessions. ## Overview The Koolertron 45-Key One-Handed Mechanical Gaming Keyboard is a compact, fully programmable keypad featuring red mechanical switches, an infinite-rotation multifunction knob, and vibrant RGB backlighting. Designed for gamers and professionals alike, it supports 16 macro keys with up to 349 commands, stores 4 custom profiles in its built-in MCU, and connects via USB-C for seamless plug-and-play compatibility across Windows and Mac systems. ## Description Product description One Handed Macro Mechanical Keyboard Specifications Shell material: High-quality plexiglass 1.5M detachable USB cable Compatible with Windows XP,7,8,10, Mac OS Blue/Red Switchs for Keyboards Blue Axis:Click like a big rough boy. Powerful percussion is a favorite of gamers. Red Axis:Soft keys like a quiet girl.Suggest for office/daily use. RGB/Single Backlight for Keys Single light is blue or pink. RGB backlight is player favorite. You can adjust 30 levels of brightness,32 levels of saturation,32 different colors. Package Included 1 x One Handed Macro Mechanical Keyboard 1 x USB Cable 1 x Keycaos Puller 1 x User Manual All Keys Can Programmed Freely Customize as you like according to the environment. You can set the 127 keys,web navigation buttons,19 multimedia shortcuts,Windows/keyboard lock etc. 4-layer Configuration 16 macro functions can be set. The macro function simplifies complex editing tasks and greatly increases your work efficiency.It is great for someone. Built-in MCU Storage Any custom program configurations can be stored in the MCU and no need to reset the keypad even connect another computer, plug and play. USB Type-C Connection Unique interface design, produced USB Type C port to connect the keypad without worrying about the port's orientation. Mini One-Handed Mechanical Gaming Keypad Macro Keys for You Programmable Keys Mini Keyboards One-handed Keys Knob Keypas for You Multi-function Keyboard for You More Macro Programmable Keys in the Koolertron 45 Fully Programmable Key 23 Fully Programmable Key 9 Fully Programmable Key 40% Programmable Keyboard 9 Macro Keys with Knob 24 Macro Keys with Knob 48 Programmable Keyboards Review: Fully programmable and full of features! - This is really more like a 4.5 out of 5 star review, more on that below. My desk has a keyboard drawer with full size keyboard on it, which I use most of the time. For PC gaming however, it's less than ideal to have on hand on top of the desk (mouse), and the other under the desk on the keyboard, so I got this Half-size keyboard from koolertron for my gaming needs. I used to use a cheaper one-handed keyboard for a while, which was okay, but only had basic features. The koolertron (while more expensive) comes with a lot of extra features that the others don't have, such as a volume knob, an extra column of keys, and includes arrow keys. The keyboard is also fully programmable with a web-based interface (VIA I think), which is fantastic. You can remap keys to anything you want, including keys that are not included in this "half" of the keyboard (like Enter, delete, etc). Basically it allows for mapping of any character that would normally be on a full size keyboard, and more. Even the volume knob is remappable. It allows you to set up multiple layers if you need to, and allows you to program macros as well. it has many available slots for layers and macros, more than you will probably ever need. You can also change the lighting scheme, colors, patterns, brightness, speed, etc. The switches themselves are basic outemu switches, so not top tier, but okay. I actually intend to swap these out with nicer switches soon. You will have to use a soldering iron if you want to do this though. The ONLY reason i'm giving this 4 stars (really 4.5) is because a lot of keybaords have hotswap sockets to make changing out your switches very easy. I really hope Koolertron starts making these keyboards with hotswap sockets, because that would just be icing on the cake, and make a really good keyboard, an absolutely great keyboard. Review: Perfect - A really good little one-handed keyboard. The keys are snappy, if a little too sensitive. The software doesn't look great, but it does the job just fine. Others mentioned something about restarting the keyboard but I didn't have any problem. I made a change in the software and the keyboard responded to it immediately. An excellent purchase. ## Features - 🟩【Unique knob】Knob (turn left and right, press down) can be programmable. Rotate left and right can be infinitely rotated.It can be set to ± the volume, switch the music previous/next song, reduce/increase the light brightness, switch the light mode, webpage forward/back, etc. - 🟩【All 45 Keys Programmable】All keys can be programmable. The custom programmable key functions include regular 127 buttons, web navigation buttons, 19 multimedia shortcuts, keyboard locks, Windows locks, etc. Each button can be set to any of these buttons. You can connect the keypad (plug and play) and a 127-key keyboard with the same computer at the same time, they will not interfere with each other. - 🟩【Macro Keys】There are 16 macro function buttons. Macro functions can be used in series and can support up to 349 key commands, which can meet various complex usage scenarios, Such as: office/wps and other office software shortcuts, CAD/Ae/Pr/Ps shortcuts, various user accounts and passwords, game quick tricks, basic code for programmers. For example, setting a button triggers "ctrl+a 0.5s ctrl+c 0.5s ctrl+v" etc a series of operations. - 🟩【4-Layer Custom Configurations】Built-in MCU, after keyboard keys be set up, it can be stored in keyboard's MCU, and no need reset the keyboard even replace the computer. Can save 4-layer of configurations to handle multiple usage scenarios. Perfect not only for gamers but also for so many other types of users including designers and video editors. - 🟩【RGB Backlight Keyboard】RGB backlight can be customized to the player's desired color. The backlight brightness can be adjusted/turned off. Dynamic effects can be summarized into 8, each dynamic light effect can be adjusted to 3 different speeds; In addition, you can adjust 30 levels of brightness, 32 levels of saturation, and 32 different colors (including 32 static monochrome and 32 static color) in the light effect.(NOTE: there is no support for using HUB) - 🟩【Mouse function】Added mouse function, you can control the cursor movement, click, and slide functions through buttons - 🟩【Combination keys】 You can set "shift+" "alt+" "ctl+" "win+" there are 36 key combinations for setting ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B824GDD9 | | Additional Features | Programmable Keys | | Antenna Location | Gaming | | Best Sellers Rank | #24,928 in Video Games ( See Top 100 in Video Games ) #125 in Mac Gaming Keyboards | | Brand | Koolertron | | Built-In Media | USB Cable | | Button Quantity | 127 | | Color | Black/RGB LED/Red switches | | Compatible Devices | PC, Laptop | | Compatible Operating System Family | MacOS, Windows | | Connectivity Technology | USB-C | | Customer Reviews | 3.6 out of 5 stars 10 Reviews | | Enclosure Material | Plastic | | Hand Orientation | Ambidextrous | | Keyboard Backlighting Color Support | RGB | | Keyboard Description | Multi Functional | | Keyboard Layout | QWERTY | | Manufacturer | Koolertron | | Mechanical Keyboard Switch Model | Red switch model | | Model Name | 45-key One-Hand Programmable Macro Mechanical Keyboard | | Model Number | AE-AMAG50-CLA | | Number of Keys | 45 | | Number of Sections | 1 | | Power Source | USB | | Recommended Uses For Product | Gaming | | Special Feature | Programmable Keys | | Style Name | 45 Keyboard | | Switch Type | Red switches | | Theme | Gaming | | Unit Count | 1.0 Count | | Warranty Description | 1 Year | | Water Resistance Level | Not Water Resistant | ## Product Details - **Brand:** Koolertron - **Color:** Black/RGB LED/Red switches - **Compatible Devices:** PC, Laptop - **Connectivity Technology:** USB-C - **Keyboard Description:** Multi Functional - **Keyboard backlighting color support:** RGB - **Material:** Plastic - **Recommended Uses For Product:** Gaming - **Special Feature:** Programmable Keys - **Style:** 45 Keyboard ## Images ![One Handed Mechanical Gaming Keyboard, 45-Key Fully Programmable Mini Keypad, Mini USB Macro Keyboard with Rotating Knob, RGB Backlit Red Switches, for Windows PC Gamers - Image 1](https://m.media-amazon.com/images/I/71eWsjLxcuL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐ Fully programmable and full of features! *by M***. on December 22, 2025* This is really more like a 4.5 out of 5 star review, more on that below. My desk has a keyboard drawer with full size keyboard on it, which I use most of the time. For PC gaming however, it's less than ideal to have on hand on top of the desk (mouse), and the other under the desk on the keyboard, so I got this Half-size keyboard from koolertron for my gaming needs. I used to use a cheaper one-handed keyboard for a while, which was okay, but only had basic features. The koolertron (while more expensive) comes with a lot of extra features that the others don't have, such as a volume knob, an extra column of keys, and includes arrow keys. The keyboard is also fully programmable with a web-based interface (VIA I think), which is fantastic. You can remap keys to anything you want, including keys that are not included in this "half" of the keyboard (like Enter, delete, etc). Basically it allows for mapping of any character that would normally be on a full size keyboard, and more. Even the volume knob is remappable. It allows you to set up multiple layers if you need to, and allows you to program macros as well. it has many available slots for layers and macros, more than you will probably ever need. You can also change the lighting scheme, colors, patterns, brightness, speed, etc. The switches themselves are basic outemu switches, so not top tier, but okay. I actually intend to swap these out with nicer switches soon. You will have to use a soldering iron if you want to do this though. The ONLY reason i'm giving this 4 stars (really 4.5) is because a lot of keybaords have hotswap sockets to make changing out your switches very easy. I really hope Koolertron starts making these keyboards with hotswap sockets, because that would just be icing on the cake, and make a really good keyboard, an absolutely great keyboard. ### ⭐⭐⭐⭐⭐ Perfect *by M***T on September 22, 2025* A really good little one-handed keyboard. The keys are snappy, if a little too sensitive. The software doesn't look great, but it does the job just fine. Others mentioned something about restarting the keyboard but I didn't have any problem. I made a change in the software and the keyboard responded to it immediately. An excellent purchase. ### ⭐⭐⭐⭐⭐ Quality *by J***S on December 31, 2025* Works well. Can't assign a color for each key sadly. Beyond that solid. I will update in a year. ## Frequently Bought Together - Koolertron One Handed Mechanical Gaming Keyboard, 45-Key Fully Programmable Mini Keypad, Mini USB Macro Keyboard with Rotating Knob, RGB Backlit Red Switches, for Windows PC Gamers - GUNMJO Pro Custom Coiled USB C Cable for Gaming Keyboard, Double-Sleeved Mechanical Keyboard Cable with Detachable Metal Aviator, 1.5M USB-C to USB-A, White Color - BOYI TD31Pro Mechanical Number Pad,Bluetooth5.0/2.4G/Type-C Wireless Numeric Keypad,RGB HotSwap Numpad with Screen&Knob,PBT Keycaps Rechargeable Gasket Number keypad for PC Laptop Desktop(Black-Grey) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/485299596-one-handed-mechanical-gaming-keyboard-45-key-fully-programmable-mini](https://www.desertcart.co.uk/products/485299596-one-handed-mechanical-gaming-keyboard-45-key-fully-programmable-mini) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-18*