Keychron
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Keychron KJ4 Wireless Mechanical Keyboard - 80% Layout(87 Keys) Red Switch, QMK RGB Backlit, 2.4G/Bluetooth/USB-C, Double-Shot Cherry PBT Keycaps, 3750mAh Battery, Mac/Win/Linux Compatible - Black
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Keychron KJ4 Wireless Mechanical Keyboard - 80% Layout(87 Keys) Red Switch, QMK RGB Backlit, 2.4G/Bluetooth/USB-C, Double-Shot Cherry PBT Keycaps, 3750mAh Battery, Mac/Win/Linux Compatible - Black
The KJ4 is designed for versatility and comfort across macOS, Windows, and Linux.
Keychron KJ4 Wireless Mechanical Keyboard - 80% Layout(87 Keys) Red Switch, QMK RGB Backlit, 2.4G/Bluetooth/USB-C, Double-Shot Cherry PBT Keycaps, 3750mAh Battery, Mac/Win/Linux Compatible - Black
Item #: 227445215

Keychron KJ4 Wireless Mechanical Keyboard - 80% Layout(87 Keys) Red Switch, QMK RGB Backlit, 2.4G/Bluetooth/USB-C, Double-Shot Cherry PBT Keycaps,

89% of respondents would recommend this to a friend

Item #: 227445215

JMD 12511

Price Details

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*All items will import from US

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Order now and get it around Friday, October 09
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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 wireless, Bluetooth, and USB-C connections, catering to all user preferences for seamless switching between devices.
Durable Keycaps
Double-shot Cherry PBT keycaps provide exceptional durability and a premium feel, ensuring long-lasting usage without fading.
Customizable Lighting
QMK RGB backlighting allows users to customize lighting effects, enhancing aesthetics and providing visibility in low-light conditions.

Product Details

Shop Keychron KJ4 Wireless Mechanical Keyboard - 80% Layout(87 Keys) Red Switch, QMK RGB Backlit, 2.4G/Bluetooth/USB-C, Double-Shot Cherry PBT Keycaps, 3750mAh Battery, Mac/Win/Linux Compatible - Black online at a best price in Jamaica. B0FMDY1R82
Compatible DevicesPC, Mac, Linux
Connectivity Technology2.4G, Bluetooth, USB-C
Additional FeaturesProgrammable Keys
Switch TypeLinear
Keyboard LayoutQWERTY
Hand OrientationAmbidextrous
Compatible Operating System FamilyLinux, Windows
Compatible Tablet Computer ModelsAAUB P30
Number of Keys87
Style NameBlack - Red Switch
BrandKeychron
Keyboard DescriptionMechanical
Antenna LocationGaming, Office
Unit Count1 Count
ManufacturerKeychron
Number of Items1
Enclosure MaterialPolybutylene Terephthalate
Recommended Uses For ProductGaming, Office
Special FeatureProgrammable Keys
StyleBlack - Red Switch
MaterialPolybutylene Terephthalate
Keyboard layoutQWERTY
Item Weight2 lbs (910 grams)

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?

Suitable For
  • Gamers

    The keyboard’s low latency and customizable RGB lighting enhance the gaming experience for competitive players.

  • Writers

    The tactile red switches provide a comfortable typing experience, making it ideal for long writing sessions.

  • Multi-Device Users

    With Bluetooth and 2.4G wireless connectivity, it seamlessly connects to multiple devices, ideal for tech-savvy users.

Not Suitable For
  • Budget-Conscious Buyers

    Its premium features and build quality may be too high in price for users purely seeking a basic keyboard.

Product Description

Keychron KJ4 Wireless Mechanical Keyboard - 80% Layout(87 Keys) Red Switch, QMK RGB Backlit, 2.4G/Bluetooth/USB-C, Double-Shot Cherry PBT Keycaps, 3750mAh Battery, Mac/Win/Linux Compatible - Black

Have any Query? Chat with us

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 Jamaica. 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

Keychron KJ4 Wireless Mechanical Keyboard - 80% Layout(87 Keys) Red Switch, QMK RGB Backlit, 2.4G/Bluetooth/USB-C, Double-Shot Cherry PBT Keycaps, 3750mAh Battery, Mac/Win/Linux Compatible - Black is a highly regarded choice among keyboard enthusiasts. Users appreciate its robust build quality and quiet operation, making it ideal for both gaming and office use. The Bluetooth connection is consistently reliable, and the keyboard provides excellent battery life, lasting around half a month under typical usage. Additionally, its programmable keys and customizable lighting features enhance the overall user experience, allowing for personal adjustments to suit preferences. Many have highlighted the comfortable key spacing and good tactile feedback, reinforcing its status as a favorite among users.

Customer Reviews & Ratings

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Pros

  • Easy to carry for work or travel
  • Reliable Bluetooth connectivity
  • Low key noise with comfortable key spacing
  • Good battery runtime and lifespan
  • Customizable RGB backlighting

Cons

  • Initial switch options may not suit everyone's preferences

Platform Trust & Buyer Confidence

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Jasmin
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“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
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“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

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Opaleye
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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
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Adele
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“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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Important information

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JMD 12511

Order now and get it around Friday, October 09

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
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Fastest cross-border delivery

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.

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