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Razer Basilisk Ultimate Wireless Gaming Mouse User Guide


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Razer Basilisk Ultimate Gaming Mouse

Razer Basilisk Ultimate


Razer Basilisk Ultimate 1


  • Left mouse button
  • Right mouse button
  • Scroll wheel
  • DPI stage up
  • DP| Stage down
  • Multi-function paddle
  • Mouse button 5
  • Mouse button 4
  • Ultraslick mouse feet
  • Scroll wheel resistance adjustment dial
  • Razer™ Focus + 20,000 DPI Optical Sensor
  • Profile indicator
  • Profile button
  • Power on/off switch
  • Wireless USB dongle compartment
  • Wireless USB dongle
  • Charging Cable
  • Razer Chroma™ Mouse Charging Dock



  • PC with a free USB port


  • Windows®7 64-bit (or higher)
  • Internet connection for software installation

You’ve got a great device in your hands complete with a 2-year limited warranty coverage. Now maximize its potential and score exclusive Razer benefits by registering at razerid.razer.com

Razer Basilisk Ultimate 2


  • True 20,000 DPI Focus+ optical sensor with 99.6% resolution accuracy
  • Up to 650 inches per second (IPS) / 50 G acceleration
  • Advanced Lift-off/Landing distance customization
  • Hyperspeed wireless technology
  • Eleven independently programmable buttons
  • Replaceable Multi-function paddle
  • Razer™ Optical Mouse Switches rated for 70M clicks
  • Ergonomic right-handed design with textured side grips.
  • Gaming-grade tactile scroll wheel with infinitely customizable resistance
  • On-The-Fly Sensitivity Adjustment (Default stages: 800/1800/4000/9000/20000)
  • Hybrid On-board and Cloud Storage (4+1 profiles)
  • Razer Synapse 3 enabled
  • 14 Razer Chroma™ lighting zones with true 16.8 million customizable color options
  • Inter-device color synchronization
  • Wired and Wireless usage modes.
  • 2.4 GHz dongle
  • 1.8 m / 6 ft Speedflex cable for charging and wired use
  • Razer Mouse charging dock compatible
  • Battery life: Approximately 70 hours (without lighting) (Battery life depends on usage settings)


  • Length: 130 mm / 5.11 in
  • Width: 75 mm / 2.75 in
  • Height: 42 mm / 1.65 in
  • Weight: 107 g / 0.24 lbs*


Plug the charging cable from your computer’s I|SR not to your Rasilick lIltimate.

Razer Basilisk Ultimate 3

For best results, please fully charge your Razer Basilisk Ultimate before using it for the first time. A depleted battery will be fully charged in approximately 4 hours. If the Razer Basilisk Ultimate has not been used for an extended period, you may need to recharge it before use. The Razer Basilisk Ultimate requires a USB connection that can supply sufficient power to charge the battery.

The battery charging process of the Razer Basilisk Ultimate may be affected if connected to a non-powered USB hub or non-powered USB ports found on certain keyboards and other peripherals. When in doubt, it is preferable to connect the Razer Basilisk Ultimate directly to the USB port of your computer.

The Razer Basilisk Ultimate’s scroll wheel will blink red twice in repeated intervals to indicate that the battery’s power is less than 5%. This lighting sequence will repeat until the battery is drained or the mouse is connected to the PC via the charging cable.

Razer Basilisk Ultimate 4


  1. Remove the compartment cover from your Razer Basilisk Ultimate.Razer Basilisk Ultimate 5
  2. Remove the USB wireless dongle from your mouse.Razer Basilisk Ultimate 6
  3. Reattach the compartment cover onto your Razer Basilisk Ultimate and make sure it is securely fastened.Razer Basilisk Ultimate 7
  4. Insert the USB wireless dongle into your computer’s USB port.Razer Basilisk Ultimate 8
  5. Switch on the Razer Basilisk Ultimate.Razer Basilisk Ultimate 9

You can use the charging dock to replenish your mouse’s battery and extend the reach of your USB wireless dongle. You can also connect to Razer Synapse and place your Razer Basilisk Ultimate on the charging dock to view the mouse’s current battery status.

Razer Basilisk Ultimate 10

Your Razer Basilisk Ultimate has a multi-function paddle which by default, allows you to temporarily change the mouse’s sensitivity when held down. To customize the multi-function paddle to perform different tasks, you’ll need to install Razer Synapse 3. For a better fit, you can replace the multi-function paddle with other sizes sold exclusively on razercarestore.razer.com.


The Synapse tab is your default tab when you first launch Razer Synapse 3. This tab allows you to navigate the Dashboard subtab.

The Dashboard subtab is an overview of your Razer Synapse 3 where you can access all your Razer devices, modules, and online services.

Razer Basilisk Ultimate 11

The Mouse tab is the main tab for your Razer Basilisk Ultimate. From here, you can change your device’s settings such as button assignment, DPI sensitivity, and lighting. Changes made under this tab are automatically saved to your system and cloud storage however, you need to click the Save button (3) to open the storage slots for your Razer device’s on-board memory then drag and drop the profiles you want to store.

The Customize subtab is for modifying your mouse’s button assignments.

Razer Basilisk Ultimate 12

The profile is data storage for keeping all your Razer peripheral settings. By default, the profile name is based on your system’s name. To add, rename, duplicate, or delete a profile, simply press the Miscellaneous button ( • • •).

Stored Profiles
Your Razer Basilisk Ultimate can store up to 5 profiles from Razer Synapse 3, which you can use even on systems that do not have Razer Synapse 3 installed. Pressing the profile button will cycle through the different profiles, with the profile indicator’s color showing which profile is currently selected.

Razer Basilisk Ultimate 13

Mouse Use
This option enables you to switch the orientation of your primary and secondary mouse functions to accommodate left-handed or right-handed users.

Hypershift mode is a secondary set of button assignments that is activated when the Hypershift key is held down. By default, the Hypershift key is assigned to the FN key of your Razer Synapse 3-supported keyboard however, you can also assign any mouse button as a Hypershift key.

Mouse Function
This option substitutes the current button assignment with another mouse function. Listed below are the functions which you can choose from:

  • Left Click – Performs a left mouse click using the assigned button.
  • Right Click – Performs a right mouse click using the assigned button.
  • Scroll Click – Activates the universal scrolling function.
  • Double Click – Performs a double left click using the assigned button.
  • Mouse Button 4 – Performs a “Backward” command for most internet browsers.
  • Mouse Button 5 – Performs a “Forward” command for most internet browsers.
  • Scroll Up – Performs a “Scroll Up” command using the assigned button.
  • Scroll Down – Performs a “Scroll Down” command using the assigned button.
  • Scroll Left – Performs a “Scroll Left” command using the assigned button.
  • Scroll Right – Performs a “Scroll Right” command using the assigned button.
  • Repeat Scroll Up – Continuously performs a “Scroll Up” command while the assigned button is pressed.
  • Repeat Scroll Down – Continuously performs a “Scroll Down” command while the assigned button is pressed.

This option allows you to assign multimedia controls to your Razer device. Listed below are the multimedia controls you can choose from:

  • Volume Down- Decreases the audio output.
  • Volume Up – Increases the audio output.
  • Mute Volume – Mutes the audio.
  • Mic Volume Up – Increases the microphone volume.
  • Mic Volume Down – Decreases the microphone volume.
  • Mute Mic – Mutes the microphone.
  • Mute All – Mutes both microphone and audio output.
  • Play / Pause – Play, pause, or resume playback of the current media.
  • Previous Track – Play the previous media track.
  • Next Track – Play the next media track.

Mouse Properties
From here, you can access the Windows Mouse Properties where you modify operating system settings that can directly affect your Razer Basilisk Ultimate.

The Lighting subtab enables you to modify your Razer device’s light settings.

You can turn off your Razer device’s lighting by toggling the Brightness option or increase/decrease the luminance using the slider.

Switch Off Lighting
This is a power-saving tool that allows you to disable your device’s lighting in response to your system’s display turning off and/or automatically powering down when your Razer Basilisk Ultimate has been idle for a set amount of time.

Quick Effects
Several quick effects can be selected and applied to your mouse’s lighting, as listed here:

Razer Basilisk Ultimate 14

Razer Basilisk Ultimate 15

Advanced Effects
The Advanced Effects option allows you to choose a Chroma Effect you want to use on your Razer Chroma-enabled peripheral. To start making your own Chroma Effect, simply press the Chroma  Studio button (O CHROMA STUDIO). Click here to learn more about the Chroma Studio.

tracking The Calibration subtab allows you to optimize your Razer Precision Sensor to any surface for better.

Smart Tracking
Smart Tracking enables you to set the distance at which the sensor stops tracking when it is lifted from its surface to avoid unwanted cursor movement You may set different values to the lift-off and landing distances by selecting the Enable Asymmetric Cut-Off.

The Power subtab allows you to manage your device’s energy consumption when running on batteries. You can also set your device to enter sleep mode when it has been idle for a certain amount of time.

The Profiles tab is a convenient way of managing all your profiles and linking them to your games and applications.

View which Razer device is using a specific profile using the Devices subtab. To create a new profile within the selected device, simply click the add button ( +-). To rename, duplicate, or delete a profile, simply press the Miscellaneous button (• ••). Each profile can be set to automatically activate when you run an application using the link Games anti.

Linked Games
The Linked Games subtab gives you the flexibility to add games, view peripherals that are linked to games, or search for added games. You can also sort games based on alphabetical order, last played, or most played. Added games will still be listed here even if it is not linked to a Razer device.

The Settings window, accessible by clicking the (°*) button on Razer Synapse 3, enables you to configure the startup behavior, change language, view your Razer device’s master guide, or perform factory reset on any connected Razer device.

General tab
The default tab of the Settings window, The General tab enables you to change the software’s display language and start-up behavior or view the master guide of all connected Razer devices.

Reset tab
The Reset tab allows you to perform a factory reset on all connected Razer devices with on-board memory. All profiles stored on the selected device’s onboard memory will be erased.

About tab
The About tab displays brief software information, and its copyright statement, and also provides relevant links for its terms of use. You may also use this tab to check for software updates, or as a quick access to Razer’s social communities.


To achieve maximum safety while using your Razer Basilisk Ultimate, we suggest that you adopt the following guidelines: Should you have trouble operating the device properly and troubleshooting does not work, unplug the device and contact the Razer hotline or go to support.razer.com for support. Do not attempt to service or fix the device yourself at any time.

Do not take apart the device (doing so will void your warranty) and do not attempt to operate it under abnormal current loads. Keep the device away from liquid, humidity, or moisture. Operate the device only within the specific temperature range of 0°C (32° F) to 40°C (104° F). Should the temperature exceed this range, unplug and/or switch off the device to let the temperature stabilize to an optimal level.

Research has shown that long periods of repetitive motion, improper positioning of your computer peripherals, incorrect body position, and poor habits may be associated with physical discomfort and injury to nerves, tendons, and muscles. Below are some guidelines to avoid injury and ensure optimum comfort while using your Razer Basilisk Ultimate.

  • Position your keyboard and monitor directly in front of you with your mouse next to it. Place your elbows next to your side, not too far away and your keyboard within easy reach.
  • Adjust the height of your chair and table so that the keyboard and mouse are at or below elbow height.
  • Keep your feet well supported, posture straight and your shoulders relaxed.
  • During gameplay, relax your wrist and keep it straight. If you do the same tasks with your hands repeatedly, try not to bend, extend, or twist your hands for long periods.
  • Do not rest your wrists on hard surfaces for long periods. Use a wrist rest to support your wrist while gaming.
  • Customize the keys on your keyboard to suit your style of gaming to minimize repetitive or awkward motions while gaming.
  • Do not sit in the same position all day. Get up, step away from your desk, and do exercises to stretch your arms, shoulders, neck, and legs.


The Razer Basilisk Ultimate requires minimum maintenance to keep it in optimum condition. Once a month we recommend you unplug the device from the computer and clean it using a soft cloth or cotton swab to prevent dirt buildup. Do not use soap or harsh cleaning agents. To get the ultimate experience in movement and control, we highly recommend a premium mouse mat from Razer.

Some surfaces will cause undue wear on the feet requiring constant care and eventual replacement note that the sensor of the Razer Basilisk Ultimate is ‘tuned’ or optimized, especially for the Razer mouse mats. This means that the sensor has been tested extensively to confirm that the Razer Basilisk Ultimate reads and tracks best on Razer mouse mats.


Faqs About Razer Basilisk Ultimate

What is the Razer Basilisk Ultimate?

The Razer Basilisk Ultimate is a high-performance wireless gaming mouse designed by Razer, known for its precision, customization options, and ergonomic design.

What are the key features of the Razer Basilisk Ultimate?

Key features include Razer’s HyperSpeed Wireless technology for low-latency connectivity, a high-precision Focus+ optical sensor with up to 20,000 DPI sensitivity, customizable Chroma RGB lighting, customizable scroll wheel resistance, and programmable buttons.

Is the Razer Basilisk Ultimate suitable for competitive gaming?

Yes, the Basilisk Ultimate is designed with input from professional gamers and features performance-focused features like the high-precision sensor, customizable buttons, and low-latency wireless connectivity, making it suitable for competitive gaming.

How does the customizable scroll wheel work?

The Razer Basilisk Ultimate allows users to adjust the resistance of the scroll wheel to their preference using a dial located beneath the mouse. This allows for precise scrolling control tailored to different gaming or browsing needs.

What is Razer HyperSpeed Wireless technology?

Razer HyperSpeed Wireless technology is Razer’s proprietary wireless connection protocol designed to deliver low-latency performance comparable to wired connections. It ensures a stable and responsive wireless connection, ideal for gaming.

How many programmable buttons does the Razer Basilisk Ultimate have?

The Basilisk Ultimate features 11 programmable buttons, including the standard left and right buttons, a clickable scroll wheel, two DPI sensitivity buttons, and seven customizable buttons on the side.

Does the Razer Basilisk Ultimate support left-handed users?

No, the Basilisk Ultimate is designed for right-handed users and does not have a symmetrical design to accommodate left-handed use.

What software is used to customize the Razer Basilisk Ultimate?

The Basilisk Ultimate can be customized using Razer Synapse software, which allows users to adjust settings such as DPI sensitivity, button assignments, RGB lighting effects, and more.

What is the battery life of the Razer Basilisk Ultimate?

The battery life of the Basilisk Ultimate varies depending on usage and lighting settings. With RGB lighting disabled, it can last up to 100 hours on a single charge. With lighting enabled, battery life will be shorter.

Does the Razer Basilisk Ultimate come with a charging dock?

Yes, the Basilisk Ultimate typically comes with a charging dock that doubles as a wireless receiver, providing convenient storage and charging for the mouse when not in use.

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