Use the same connection, firmware and profile when repeating a check. These measurements describe browser input and do not assign a hardware health score.
Choose a guided measurement.
Trigger Travel · Last 6 Seconds
Slowly squeeze and release each trigger. A digital or instant-trigger mode can jump directly between endpoints.
— Left trigger– – Right trigger
Observed Press / Release Counts
↓ Presses · ↑ Releases. Counts start at observed state transitions; a control already held when sampling begins has no recorded press. Brief events between browser samples can be missed.
How to read these measurements
The guided sweep records the greatest radius in each of 32 direction sectors. A direction counts as covered at radius 0.75. Outline deviation is the mean absolute difference from radius 1, shown only after all directions are covered. An intended square response can have higher deviation.
Centring records four releases per stick: left, right, up and down. After input returns below radius 0.5, it settles for 0.4 seconds and averages the following 0.4 seconds, with at least five samples. Position spread is the greatest distance from the average of those four positions. Filtering can affect all results. This is not a latency or hardware polling-rate test.
Connect a controller to check browser rumble support.
Did you feel the vibration?
Resting-Stick Measurement
This describes the input exposed by your browser. Firmware and remapping software can already apply deadzones. These readings do not certify hardware condition.
Raw readings & input history
Indices are shown as reported by the browser. Unknown layouts are not assigned stick or trigger names.
Waiting for controller input.
GUIDED CHECKUP
Check Every Control.
Step 1 of 5
Buttons
Triggers
Stick drift
Stick range
Results
Connect a controller to begin.
Save, export or compare this session
KEEP YOUR BASELINE
Save Or Export This Session
Stored on this device
Snapshots stay in this browser. Export a report before clearing site data or moving to another device.
Saved snapshots & comparison 0
Choose two records to compare. Imported files are checked locally and never uploaded.
By EmuCores · Setup guide · Updated 30 October 2026
Connect Your PowerA Controller
PowerA Xbox and PC/Cloud controllers have different platform and software requirements. Start with the exact FUSION or OPS model and a supported computer connection.
FUSION Pro 4 is a wired Xbox/PC controller. OPS v3 is a separate PC/Cloud family with its own PC HQ software; do not assume the Xbox-oriented Gamer HQ setup applies to both.
Confirm the controller’s platform mode and supported connection. Use a USB data cable or the receiver specified for that exact model.
Focus this page, press a face button and choose the responding device from the connected-controller menu.
Press and release each control. Check raw indices if the device has no standard mapping.
Record your connection, software profile and trigger-stop setting before saving a snapshot.
Model setup at a glance — PC connection guidance
Model
Connection to check
Setup / interpretation
FUSION Pro 4
USB
Wired Xbox/PC family. Record Gamer HQ settings and rear-button assignments. Manufacturer guidance
OPS v3 Pro
USB / Receiver
PC/Cloud family using PowerA PC HQ. Verify the chosen wired or wireless mode in its manual. Manufacturer guidance
Connections vary by edition and operating system. This table records setup guidance, not a physically verified browser result.
MODEL NOTES
Choose Your PowerA
ControllerTester illustration
PowerA
FUSION Pro 4
USB
A wired Xbox and PC controller with adjustable-height sticks, rear buttons and three trigger-lock positions.
Specifications & testing tips
Platforms
PC / Xbox
PC connections
USB
Configuration
Gamer HQ (FUSION) / PC HQ (OPS)
Stick technology
Hall effect; Quick-Twist height adjustment
Triggers
Three-position trigger locks
Extra controls
Four mappable buttons
Software
PowerA Gamer HQ
Before You Test
Wired Xbox/PC family. Record Gamer HQ settings and rear-button assignments.
Start with the normal manufacturer-supported PC connection. Record firmware, connection and profile before saving a snapshot.
What To Check Here
Press each face button and direction once. Use the raw input list if the browser has no standard mapping.
Move the sticks around their range, release them and run the resting-stick test. Save the active profile alongside the results.
Squeeze and release both triggers. A short-travel or digital mode can change the values you observe.
Rear buttons can repeat existing inputs. Browser rumble does not test motion sensors, audio or adaptive-trigger resistance.
Illustration reference: Model appearance reference. AI-generated illustration based on the model reference; small details and colour may vary. Colour and included accessories may vary.
Illustration reference: Model appearance reference. AI-generated illustration based on the model reference; small details and colour may vary. Colour and included accessories may vary.
A rear button assigned to A, B or a trigger can highlight that existing browser control. Check the direct button and rear assignment separately, then keep the profile name in your report.
Deadzones, trigger stops and response settings can affect the values delivered to the browser. A comparison is most useful when the connection and profile are held constant.
Lighting and headset functions are outside the Gamepad API button/stick test. An input result does not verify those features or the compatibility of a different platform edition.
Turn A Reading Into A Useful Comparison
Check one variable at a time. For unwanted stick movement, release the sticks onto a stable surface and run the ten-second resting test. For a missing action, compare a direct button press with its rear-button assignment. Save a note identifying the active profile so a later result can be reproduced.
The browser-reported device name can describe a virtual gamepad. The optional model reference is your selection, not automatic hardware identification. Brand listing does not guarantee vibration, independent paddles or vendor-specific controls in your browser.
FUSION Pro 4 and OPS v3 belong to different product families. Use the model’s official support page to distinguish Gamer HQ from PC HQ.
Why do rear buttons highlight existing controls?
They may be assigned to those controls. Press the original control and then the rear assignment separately. Record the assignment in the setup note before comparing.
Documentation reviewed 29 October 2026. Setup guidance, not a hands-on product review or a certification of browser support.
ControllerTester illustration