Gaming Keyboard Razer RZ03-04370400-R3G1 USB RF Wireless Bluetooth QWERTY German Black

The Razer RZ03-04370400-R3G1 is a full-size (100%) gaming keyboard with a German QWERTY layout in black. It supports multiple connection modes — USB, RF wireless, and Bluetooth — offering flexibility for desktop and mobile setups. The keyboard uses optical key switches for fast actuation and includes RGB LED backlighting to adjust illumination per key and create customizable lighting profiles. Designed by Razer for gaming use, it combines performance-oriented switch technology with a familiar full-size layout.

Advantages

The keyboard’s optical key switches deliver rapid response and consistent actuation, reducing input latency compared to conventional mechanical switches. Multiple connectivity options (USB + RF Wireless + Bluetooth) allow seamless switching between wired precision and wireless convenience. The full-size form factor preserves a dedicated number pad and standard function keys, while RGB LED backlighting improves visibility in low-light conditions and supports personalized lighting setups.

Suitable for

• PC gaming where low latency and reliable key actuation are required
• Multidevice setups combining a wired desktop and wireless mobile device
• Users who prefer a full-size German QWERTY keyboard with a numeric keypad
• Environments that benefit from adjustable RGB backlighting for visibility

Key specifications

• Brand: Razer
• Model / MPN: RZ03-04370400-R3G1
• EAN: 8886419349457
• Device interface: USB + RF Wireless + Bluetooth
• Keyboard form factor: Full-size (100%)
• Keyboard layout: German QWERTY
• Switch type: Optical key switches
• Backlighting: RGB LED
• Colour: Black
• Mouse included: No

How to use

Connect the keyboard via the included USB cable for a wired connection and initial setup. To use RF wireless, plug the USB receiver into your computer’s USB port and switch the keyboard to the RF mode following the manufacturer’s pairing procedure. For Bluetooth connection, enable Bluetooth on your host device, put the keyboard into Bluetooth pairing mode, and select the keyboard from the device list. Customize lighting and key assignments using Razer’s configuration software if available; otherwise use built-in onboard controls for basic lighting and mode switching.

Recommendations

For optimal performance during competitive play, use the USB or RF wireless mode to minimize latency and ensure stable connectivity. Keep the keyboard’s firmware and Razer software up to date to access the latest features and lighting profiles. Clean the keyboard periodically with compressed air and a soft cloth; avoid liquid exposure and follow Razer’s maintenance guidelines for longevity.