How do I install and use Razer Synapse to customize buttons, DPI, and scroll wheel on the Basilisk V3 X HyperSpeed?

Applies to: Razer Basilisk V3 X HyperSpeed
Last updated: 30 October 2025

Problem

You want to install the correct software and tune the Basilisk V3 X HyperSpeed for your workflow or games. You need clear steps to install Synapse, detect the mouse, set DPI stages and polling rate, remap buttons and Hypershift, and adjust scroll wheel tilt behavior. You also want settings to travel with you between PCs.

Solution

Install Razer Synapse on a Windows PC where you will do most of your customization. Confirm the mouse is detected over 2.4 GHz or Bluetooth, then create profiles. Set DPI stages and polling, remap the primary buttons and side buttons, enable Hypershift for secondary functions, and configure scroll tilt actions. Save critical settings to on-board memory so the mouse behaves consistently on other systems that may not run Synapse.

Step-by-step instructions

A) Install and prepare

1. On Windows, download and install Razer Synapse.
2. Restart the PC if prompted.
3. Connect the Basilisk V3 X HyperSpeed via the 2.4 GHz receiver or Bluetooth.
4. Open Synapse. Verify the mouse appears on the Devices screen.

B) Create profiles and link to apps or games

1. In Synapse, open the mouse device page and go to Profiles.
2. Click Add to create a profile named for a game or app.
3. Use Linked Games or Application Linking to associate that profile with one or more executables.
4. Repeat to build a small library of profiles such as General, Shooter, Editing, or Streaming.

C) Set DPI stages and sensitivity

1. Open the Performance tab.
2. Choose the number of DPI stages you want available on the mouse. Many users keep three to five.
3. Set each stage value. For example, 800, 1200, 1600, 2400, 3200.
4. Select your default stage.
5. Adjust X and Y together unless you have a specific need for different axes.

D) Tune polling rate and power behavior

1. Set Polling Rate to 1000 Hz for the smoothest feel on most gaming PCs.
2. If you notice stutter on laptops or congested USB paths, try 500 Hz.
3. In the power or battery panel, reduce sleep timeout if you want instant wake, or increase it to extend battery life.

E) Remap buttons and set Hypershift

1. Open the Customize tab.
2. Click any button in the diagram to reassign it to a mouse function, keyboard input, macro, media control, or system action.
3. Toggle Hypershift mode to assign a second function layer.
4. Choose a dedicated Hypershift button. A common choice is the forward side button or the DPI shift paddle if you prefer a “sniper” style hold.
5. Test Hypershift by holding your chosen key and pressing another button to confirm the secondary action fires.

F) Configure scroll wheel behavior

1. In Customize, select the Scroll Wheel and choose what Tilt Left and Tilt Right should do. Popular picks include horizontal scroll, next or previous weapon, or tab switching.
2. Decide what Scroll Click should do. Many users map it to middle click or application specific actions like push to talk.
3. If the wheel feels too sensitive in apps, reduce horizontal scroll speed in the OS and, if available, adjust it per profile in Synapse.

G) Save key settings to on-board memory

1. In the on-board memory or profiles panel, save your preferred profile to a hardware slot.
2. Confirm DPI stages and key remaps are written to the mouse.
3. Unplug the receiver or close Synapse to test that the remaps still work. This confirms the profile is stored on the mouse.

H) Optional: Macros and per app finesse

1. Open Macros, create a new macro, and record your inputs with sensible delays.
2. Assign the macro to a side button in the target profile.
3. For creative apps, map scroll tilt to horizontal scroll and set a Hypershift layer for timeline zoom, snapping, or tool switching.

Optional methods or tools

• USB extension for the receiver to improve signal quality while you test high polling rates.
• Multiple profiles for different desks or laptops. For example, a low DPI office profile and a higher DPI gaming profile.
• Cross testing your hardware profile on a second PC to confirm the on-board memory works as expected without Synapse.

Best practices or tips

• Keep the number of DPI stages modest. Fewer well chosen steps make in game cycling faster and reduce mistakes.
• Use Hypershift for actions you need only while held, such as temporary low DPI for sniping or tool shortcuts while editing.
• Save a “Safe Mode” profile to on-board memory with standard left and right click, middle click, and sensible DPI. This helps if you use shared PCs or KVMs.
• Review battery impact. High polling and constant Hypershift use can reduce life on a single AA battery.
• Back up your Synapse profiles by exporting them, especially before OS reinstalls or new PC setups.

Customizing with Synapse lets you shape the Basilisk V3 X HyperSpeed to each task. Profiles linked to specific games or applications ensure the right sensitivity and bindings load automatically. On-board memory keeps your core settings with the mouse so you are not dependent on software when you change computers.

If you collaborate across platforms, use Windows to create and store your hardware profiles, then rely on those when you plug the receiver into macOS or a system without Synapse. Keep one profile focused on universal actions and one tuned for your main game or editing suite. This approach gives you predictable behavior everywhere with minimal maintenance.