Introduction
This manual provides essential information for setting up, operating, maintaining, and troubleshooting your Razer Viper Ultralight Ambidextrous Wired Gaming Mouse. Please read this guide thoroughly to ensure optimal performance and longevity of your device.

Figure 1: Razer Viper Ultralight Ambidextrous Wired Gaming Mouse
Product Overview
The Razer Viper is engineered for competitive gaming, offering a blend of lightweight design, high-precision tracking, and customizable features.
Key Features:
- Ultralight Design: Weighing approximately 69 grams, designed for swift, controlled movements.
- Ambidextrous Form Factor: Suitable for both left and right-handed users with accessible, programmable buttons on both sides.
- Razer Optical Mouse Switches: Utilizes light beam-based actuation for faster response times and enhanced durability.
- 16,000 DPI Optical Sensor: High-precision tracking for accurate in-game performance.
- Razer Chroma RGB Lighting: Customizable lighting with 16.8 million color options and preset profiles.
- 8 Programmable Buttons: Reconfigure and assign complex macro functions via Razer Synapse 3 software.
- Razer Speedflex Cable: Designed to reduce drag and provide a wireless-like experience.

Figure 2: Lightweight design with rubberized side grips for enhanced control.

Figure 3: Ambidextrous design and 16,000 DPI optical sensor for precise tracking.
Official Product Videos:
Video 1: Razer Viper - Absolute Control. This video provides an overview of the Razer Viper's design and performance features.
Video 2: Razer Optical Switch - The Fastest Mouse Switch in Gaming. This video explains the technology behind Razer's optical mouse switches, highlighting their speed and durability.
Video 3: Razer Viper Ultralight Ambidextrous Great for Small Hands. This video demonstrates the ergonomic fit of the Razer Viper, particularly for users with smaller hands, and its ambidextrous design.
Setup
1. Connecting Your Mouse:
- Locate an available USB port on your computer.
- Plug the USB connector of your Razer Viper mouse into the USB port.
- Your computer should automatically detect and install the necessary drivers.
2. Installing Razer Synapse 3:
For full customization and advanced features, it is recommended to install Razer Synapse 3 software.
- Visit the official Razer website (www.razer.com/synapse) to download the latest version of Razer Synapse 3.
- Follow the on-screen instructions to complete the installation.
- Once installed, launch Razer Synapse 3 to configure your mouse settings.
Operating Instructions
1. DPI Adjustment:
The Razer Viper features a dedicated DPI (Dots Per Inch) button on the underside of the mouse, allowing for on-the-fly sensitivity adjustments. The mouse supports up to 16,000 DPI.
- Press the DPI button to cycle through preset sensitivity stages.
- The LED indicator on the mouse will change color to indicate the current DPI stage.
- Customize DPI stages and their corresponding colors using Razer Synapse 3.
2. Programmable Buttons:
Your Razer Viper mouse is equipped with 8 programmable buttons, including the left and right click, scroll wheel click, and four side buttons (two on each side).
- Open Razer Synapse 3.
- Select your Razer Viper mouse from the device list.
- Navigate to the 'Customize' tab to reassign button functions, create macros, or link profiles to specific applications.
3. Chroma RGB Lighting:
Personalize your gaming experience with Razer Chroma RGB lighting.
- In Razer Synapse 3, go to the 'Lighting' tab.
- Choose from various lighting effects, colors, and brightness levels.
- Synchronize lighting effects with other Razer Chroma-enabled devices.
Maintenance
1. Cleaning Your Mouse:
- Ensure the mouse is disconnected from your computer before cleaning.
- Use a soft, lint-free cloth lightly dampened with water or a mild cleaning solution to wipe the surface.
- Avoid using harsh chemicals, abrasive materials, or excessive moisture.
- Use a cotton swab or compressed air to clean around the scroll wheel and sensor area.
2. Cable Care:
The Razer Speedflex cable is designed for durability and flexibility. To prolong its lifespan:
- Avoid sharp bends or kinks in the cable.
- Do not pull on the cable to disconnect the mouse. Always grasp the USB connector.
- Consider using a mouse bungee to manage cable slack and prevent snagging.

Figure 4: The Razer Speedflex cable minimizes drag for unrestricted movement.
Troubleshooting
Common Issues and Solutions:
- Mouse Not Responding:
- Ensure the USB cable is securely connected to your computer.
- Try plugging the mouse into a different USB port.
- Restart your computer.
- Check if Razer Synapse 3 is running and updated.
- DPI/Sensitivity Issues:
- Verify DPI settings in Razer Synapse 3.
- Ensure the mouse sensor is clean and free of debris.
- Test on a different mouse pad or surface.
- Chroma RGB Lighting Not Working:
- Check lighting settings in Razer Synapse 3.
- Ensure Razer Synapse 3 is updated.
- Buttons Not Functioning:
- Verify button assignments in Razer Synapse 3.
- Test the mouse on another computer to rule out software conflicts.
Specifications
| Brand | Razer |
| Series | Viper |
| Model Number | RZ01-02550100 |
| Connectivity Technology | USB (Wired) |
| Movement Detection Technology | Optical |
| Max DPI | 16,000 DPI |
| Programmable Buttons | 8 |
| Lighting | Razer Chroma RGB |
| Item Weight | 3.52 ounces (approx. 69g) |
| Product Dimensions (LxWxH) | 4.99 x 2.61 x 1.49 inches |
| Operating System | Windows |
| Date First Available | August 2, 2019 |
Warranty and Support
For warranty information, technical support, and additional resources, please visit the official Razer Support website:
- Razer Support: support.razer.com
- Razer Synapse: www.razer.com/synapse
Registering your product on the Razer website may provide access to additional support and warranty benefits.







