# Keychron K4 QMK Keyboard Universal USB RF Wireless Bluetooth Nordic Black 96%

**URL:** https://aio.lv/en/product--keychron-k4x-j3z-bo--11609691
**Data updated:** 2025-11-24 15:51 (EET)
**Category:** Keyboards
**Manufacturer:** Keychron
**Manufacturer code:** K4X-J3Z-BO
**EAN:** 4894979024930
**Warranty:** 1 Year
**Availability:** Available for order
**Price:** 147.99 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 122.31 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--keychron-k4x-j3z-bo--11609691

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The Keychron K4 QMK is a 96% keyboard featuring USB, RF wireless, and Bluetooth connectivity. It has magnetic-mechanical key switches and RGB LED backlighting, making it suitable for universal use. The sleek black design adds a modern touch to any setup.

## Long description

The Keychron K4 Version 3 ISO Layout is a wireless QMK-enabled custom mechanical keyboard with a 96% layout, now updated with QMK firmware and improved acoustic foams. It supports Bluetooth 5.2 and wired USB Type-C connections, includes ISO keycap sets for UK, German, Swiss and Nordic layouts, and provides hot‑swappable sockets and pre‑lubed Keychron Super switches for easy personalization. The Keychron Launcher web app allows key remapping, macros and profile configuration across macOS, Windows and Linux without installing software.
Advantages
The keyboard combines Bluetooth 5.2 multi‑device pairing (up to three devices) and a reliable wired connection, making it suitable for multitasking across laptops, phones and tablets. QMK open‑source firmware and the Launcher web configurator give full control over keymaps and macros, while community‑reviewable code improves input security. Enhanced IXPE, EPDM and PET acoustic foams plus added internal weight improve typing acoustics and stability. Hot‑swappable 3‑pin and 5‑pin MX‑style sockets let you change switches without soldering, and pre‑lubed Keychron Super switches (red, brown, banana) offer long life and smooth operation.
Key specifications
Layout: 96% ISO (UK, German, Swiss, Nordic)
Connectivity: Bluetooth 5.2 (up to 3 devices) and USB Type‑C wired
Firmware: QMK compatible; configurable via Keychron Launcher web app
Switches: Hot‑swappable 3‑pin and 5‑pin MX‑style sockets; Keychron Super switches (pre‑lubed) available in red, brown, banana
Keycaps: Cherry profile PC shine‑through keycaps with RGB backlighting
Backlight: North‑facing RGB with 22+ effects and static white option; adjustable hue, saturation, brightness and speed
Controller: ARM MCU with 256KB Flash; 1000 Hz polling rate
Acoustics: IXPE, EPDM and PET foams for sound absorption
Ergonomics: Three adjustable tilt angles (5°, 8°, 11°)
Compatibility: macOS, Windows, Linux (includes Mac and Windows keycaps)
 How to use
Connect the keyboard to a device via Bluetooth 5.2 or using the included USB Type‑C cable. For wireless use, pair the K4 Version 3 with up to three devices and switch between them using the device‑switching keys. To customize keymaps, macros and lighting, open the Keychron Launcher web app in a compatible browser (Chrome, Edge, Opera or others) and configure profiles online—no installation required. To change switches, remove keycaps and gently pull switches from the hot‑swap sockets; insert compatible 3‑pin or 5‑pin MX‑style switches. Use the supplied Mac and Windows keycaps to match your operating system layout.
Recommendations
For the smoothest typing and long switch life, choose the pre‑lubed Keychron Super switch variant that matches your preference (red for linear, brown for tactile, banana for tactile with different feel). When using advanced QMK features, back up your keymap profiles in the Launcher and ensure your browser is up to date for full configurator compatibility.

## Specifications

### Keyboard

| Feature | Value |
|---|---|
| Device interface | USB + RF Wireless + Bluetooth |
| Keyboard form factor | 96% |
| Keyboard language | Nordic |
| Numeric keypad | Yes |
| Bluetooth version | 5.2 |
| Connectivity technology | Wired & Wireless |
| Recommended usage | Universal |
| Built-in memory | Yes |
| Built-in memory capacity | 256 KB |
| Polling rate | 1000, 125 |
| Rollover | N-key rollover |
| Keyboard keys operating life | 150 million characters |
| Multi-device support | Yes |
| Physical layout | ISO |
| Keycaps | Double shot |
| Keycaps material | Polybutylene terephthalate (PBT) |

### Mouse

| Feature | Value |
|---|---|
| Mouse included | No |

### Design

| Feature | Value |
|---|---|
| Product colour | Black |
| Material | Wood, Acrylonitrile Butadiene Styrene (ABS), Aluminium |
| Backlight colour | Multicolour |
| Backlight | Yes |
| Backlight type | RGB LED |
| Surface coloration | Monochromatic |
| Adjustable backlight | Yes |
| Keyboard style | Straight |

### Weight & dimensions

| Feature | Value |
|---|---|
| Keyboard dimensions (WxDxH) | 373.2 x 126.2 x 40.2 |
| Keyboard weight | 970.8 g |

### Power

| Feature | Value |
|---|---|
| Battery life (max) | 190 h |
| Rechargeable | Yes |
| Power source type | Battery |
| Keyboard battery type | Built-in battery |
| USB Type-C charging port | Yes |

### System requirements

| Feature | Value |
|---|---|
| Windows operating systems supported | Y |
| Mac operating systems supported | Y |
| Linux operating systems supported | Y |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | -10 - 50 |

### Packaging content

| Feature | Value |
|---|---|
| AC adapter included | No |
| Number of products included | 1 pc(s) |
| Wireless receiver interface | USB Type-A |
| Receiver included | Yes |

### Battery

| Feature | Value |
|---|---|
| Battery technology | Lithium Polymer (LiPo) |
| Battery capacity | 4000 mAh |

### Features

| Feature | Value |
|---|---|
| USB connector type | USB Type-C |
| Detachable cable | Yes |
| Hot-swap | Yes |

## FAQ

### How much does the Keychron K4 QMK Keyboard cost, and is it available for purchase?

The price is 147.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 09.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Keychron K4 QMK Keyboard be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Keychron products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Keychron service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: device interface, keyboard form factor, mouse included, keyboard language, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/11609691/66779879_large.webp