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- Keychron KJ4 Wireless Mechanical Keyboard - 8...
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Item #:
187748221
Keychron KJ4 Wireless Mechanical Keyboard - 80% Layout(87 Keys) Red Switch, QMK RGB Backlit, 2.4G/Bluetooth/USB-C, Double-Shot Cherry PBT Keycaps,
77% of respondents would recommend this to a friend
Item #:
187748221
GMD 5245
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
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Imported from USA store
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Order now and get it around Saturday, June 27
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The KJ4 is designed for versatility and comfort across macOS, Windows, and Linux.
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What Stands Out
Versatile Connectivity
Supports 2.4G, Bluetooth, and USB-C connections, allowing seamless switching between devices for a flexible and convenient typing experience across Mac, Windows, and Linux platforms.
Durable Keycaps
Features Cherry PBT shine-through keycaps that resist wear and tear, ensuring longevity while providing a premium feel and stunning aesthetics for an enhanced typing experience.
Customizable Lighting
QMK RGB backlighting offers customizable lighting effects, creating an immersive visual experience that enhances productivity and adds a personal touch to your workspace.
Product Details
- 2.4G, Bluetooth 5.2, and Wired Modes: Switch seamlessly between three connection modes. Connect up to three devices via Bluetooth 5.2, or use the 2.4 GHz wireless or Type-C wired modes for stable, high-speed performance across setups
- QMK/VIA Advanced Programming & Browser-Based Launcher: Reprogram every key via QMK/VIA firmware and build macros through the browser-based Launcher—no downloads, no OS restrictions. Save profiles to onboard memory on Windows, macOS, Linux
- Default Windows, User-Remapped macOS Layout: The KJ4 comes with a Windows layout and two blank layers. macOS users can manually remap keys and assign one layer to a Mac layout via the Launcher app for full macOS compatibility
- Doubleshot PBT Shine-Through Keycaps: Thick 1.5mm PBT keycaps resist oil and shine, while translucent doubleshot molding amplifies 16.8M-color RGB effects (8 preset modes + custom gradients). Perfect for gaming setups and design studios
- TKL Layout of 87 Keys, Compact Efficiency: Designed with a Tenkeyless layout, the KJ4 features 87 keys that strike the perfect balance between compact form and full functionality. Ideal for users who want more desk space without sacrificing essential keys
| Compatible Devices | PC, Mac, Linux |
| Connectivity Technology | 2.4G, Bluetooth, USB-C |
| Additional Features | Programmable Keys |
| Power Source | USB power |
| Switch Type | Linear |
| Keyboard Layout | QWERTY |
| Hand Orientation | Ambidextrous |
| Compatible Operating System Family | Linux, Windows |
| Compatible Tablet Computer Models | AAUB P30 |
| Number of Keys | 87 |
| Enclosure Material | Polybutylene Terephthalate |
| Brand | Keychron |
| Keyboard Description | Mechanical |
| Antenna Location | Gaming, Office |
| Unit Count | 1.0 Count |
| Manufacturer | Keychron |
| Style Name | Black - Red Switch |
| Recommended Uses For Product | Gaming, Office |
| Special Feature | Programmable Keys |
| Style | Black - Red Switch |
| Material | Polybutylene Terephthalate |
| Item Weight | 2.6 lbs (1.18 kg) |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
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Gamers
The super red switches provide fast response times, making this keyboard ideal for competitive gaming environments.
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Writers
Its reliable tactile feedback and ergonomic design enhance typing comfort, perfect for long writing sessions.
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Multitaskers
With Bluetooth connectivity and multiple device compatibility, users can easily switch between devices for efficiency.
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Casual Users
People who rarely type may find premium features unnecessary, preferring simpler, more cost-effective keyboards.
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Office Settings
The noise of mechanical keys may disrupt quiet work environments, making this keyboard less suitable for shared offices.
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Travelers
Its relatively large size and weight could make it less convenient for users who frequently travel with their keyboards.
Product Description
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Customer Questions & Answers
-
Question:
What are the key features of the Keychron KJ4 Wireless Mechanical Keyboard?
Answer: The Keychron KJ4 is a versatile wireless mechanical keyboard featuring an 80% layout with 87 keys and Brown switches, balancing tactile feedback and quiet operation. It supports QMK firmware for customizable key mappings, RGB backlighting for enhanced aesthetics, and connectivity options via Bluetooth, USB-C, or 2.4GHz. The double-shot Cherry PBT keycaps ensure durability and a premium feel, making it ideal for both gaming and typing. This combination of features makes the KJ4 suitable for professionals and gamers who want efficiency and style. -
Question:
How does the Keychron KJ4 connect to devices?
Answer: The Keychron KJ4 offers flexible connectivity options, allowing users to connect via Bluetooth, USB-C, or a 2.4GHz wireless connection. This enables seamless pairing with multiple devices such as laptops, desktops, tablets, and smartphones. For instance, you can easily switch between your desktop computer and tablet without the hassle of disconnecting and connecting wires. This convenience is particularly useful for users who multitask across different platforms. -
Question:
What is the significance of the QMK firmware in this keyboard?
Answer: The QMK (Quantum Mechanical Keyboard) firmware supports advanced customization features for the Keychron KJ4. Users can remap keys, create macros, and personalize lighting settings through an intuitive interface. This functionality allows for better workflows, especially for programmers and gamers who require specific commands at their fingertips. With QMK, you can tailor the keyboard experience to fit unique user preferences, enhancing productivity and gameplay. -
Question:
What are Brown switches and how do they perform?
Answer: Brown switches are a type of mechanical switch known for their tactile feedback and moderate actuation force. This feature provides a satisfying bump without the loud click associated with other switches, making them suitable for both typing and gaming. Users often appreciate Brown switches for offering a compromise between noise and performance, letting you enjoy a quieter work environment while still receiving clear feedback. This makes the Keychron KJ4 ideal for office settings and gaming sessions alike. -
Question:
Can the Keychron KJ4's RGB lighting be customized?
Answer: Yes, the RGB backlighting on the Keychron KJ4 can be fully customized. Users can choose from various lighting effects, colors, and brightness levels via the software or keyboard shortcuts. This level of customization allows you to match the lighting scheme of your setup or create dynamic lighting patterns for gaming. Whether you prefer subtle illumination for a workspace or vibrant effects for a gaming environment, the KJ4 offers flexibility to suit your aesthetic preferences. -
Question:
Is the Keychron KJ4 suitable for gaming?
Answer: Absolutely! The Keychron KJ4 is quite popular among gamers due to its responsive Brown switches, compact design, and wireless connectivity options. The low latency of wireless connections, especially with the 2.4GHz option, means that you won’t experience lag during intense gaming sessions. Additionally, the customizable RGB lighting enhances the gaming atmosphere, allowing for visually striking setups that match your gaming style. -
Question:
What is the benefit of using Double-Shot Cherry PBT keycaps?
Answer: Double-shot Cherry PBT keycaps are known for their durability and resistance to wear, fading, and shine. They ensure that legends or symbols on the keys remain clear and intact over time, making the Keychron KJ4 a long-lasting investment. Moreover, the PBT material provides a more premium feel compared to ABS plastic, enhancing the overall typing experience. Users who value aesthetics and tactile quality will appreciate the comfort and longevity these keycaps offer. -
Question:
How portable is the Keychron KJ4?
Answer: The Keychron KJ4’s compact 80% layout makes it highly portable, easily fitting into most backpacks or laptop bags. This lightweight design, combined with its wireless capabilities, allows users to take it on the go without being tethered to a desk. Whether you’re a remote worker, a student, or a frequent traveler, you can enjoy a high-quality typing experience anywhere. This portability is essential for maintaining productivity outside a traditional workspace. -
Question:
Does the Keychron KJ4 support multiple devices?
Answer: Yes, the Keychron KJ4 can connect to multiple devices, making it a versatile tool for users with different devices. You can easily switch between connected devices through a simple key combination, allowing seamless transitions from typing on a laptop to a tablet. This feature is immensely helpful for professionals and students who use various devices for different tasks, ensuring you maintain efficiency without needing multiple keyboards. -
Question:
Where can I buy the Keychron KJ4 Wireless Mechanical Keyboard?
Answer: You can purchase the Keychron KJ4 Wireless Mechanical Keyboard from Ubuy in The Gambia. Ubuy offers a comprehensive selection of Keychron products, ensuring you have access to the keyboard along with any accessories you might need. Shopping on Ubuy means you can take advantage of their various customer service options and detailed product information, making your buying experience smooth and informative.
Keychron Keyboards Editorial Review
**** The Keychron KJ4 Wireless Mechanical Keyboard has garnered positive feedback from users who appreciate its robust Construction and thoughtful design. It is marketed under a misprint as "KJ4," but users clarify that it is actually the J4 model. Many users commend the keyboard's 80% layout, which retains essential keys like the arrow keys while optimizing desk space. The combination of QMK compatibility, hot-swappable sockets, and responsive function keys cater to both casual typists and tech enthusiasts. Users have reported an enjoyable typing experience, particularly praising the feel and sound of the switches. With options like the Brown switches, the keyboard provides a precise tactile feedback without an overly noisy clack, thanks to added insulation. However, some feedback highlights a concern about battery life when utilizing RGB lighting, with users mentioning it lasts less than a week under active backlight conditions. Fortunately, they can easily Conserve battery life by switching off the LEDs. The keyboard has proven effective in a variety of use scenarios, including for professionals needing reliability during long working hours, especially in demanding environments like tow trucks. Its low key noise and comfortable key spacing have been touted as significant advantages for prolonged use. The stable Bluetooth 5.0 connectivity, along with the option to connect via 2.4 GHz or USB-C, provides versatility, accommodating various setups and user preferences. In summary, the Keychron KJ4 Wireless Mechanical Keyboard stands out for its solid build quality, aesthetic design, and versatile functionality, making it a strong contender in the wireless mechanical keyboard market. **
Customer Reviews & Ratings
4 customers ratings
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5 Star
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4 Star
29%
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3 Star
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Pros
- Solid Construction and durable build
- 80% layout retains essential keys
- QMK support for advanced customization
- Hot-swappable switches for easy upgrades
- Low noise level during typing
- Comfortable key spacing and ergonomics
- Reliable Bluetooth 5.0 and 2.4 GHz connectivity
- Adjustable key brightness for personalized use
- Excellent value for the price
Cons
- Battery life with RGB lighting can be less than a week
Top selling Keychron KJ4 Keyboard in Australia
Last Updated on June 11, 2026
Product Price History
Important information
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GMD 5245
Order now and get it around Saturday, June 27
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Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
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Features & Benefits
- Versatile compatibility with macOS, Windows, and Linux.
- Seamless multitasking with Bluetooth 5.2 connectivity for up to three devices.
- High-performance input with 2.4 GHz wireless and USB Type-C wired modes.
- Easy key remapping and macro creation through the Keychron Launcher web app.
- Durable Super switches tested for up to 50 million keystrokes.
- Customizable RGB lighting with 22 settings and user-friendly controls.