Setup
USB Streaming
Stream PC VR games from your Mac to Quest or PICO over a USB-C cable for the steadiest connection and the low-latency PyroWave codec.A USB-C cable gives you the steadiest stream MoltenVR can offer: no Wi-Fi congestion, and access to PyroWave, an optional low-latency codec built for USB. MoltenVR finds a plugged-in headset on its own.
Setup
Connect the cable
Plug a USB-C data cable into your Mac and your headset. Many charge-only cables don't carry data.
Allow USB debugging
On a Quest, Developer Mode must be on. The first time you connect, the headset asks whether to Allow USB debugging from your Mac. Put it on and accept.
Open the MoltenVR headset app
The app finds your Mac over the cable. If you started on Wi-Fi, the session moves to USB as soon as the cable is in.
Find best settings
Press Find best settings in MoltenVR. It measures your Mac and the USB link, runs real stream trials, and picks resolution, refresh rate and codec for you.
Codecs and refresh rates
| Codec | Notes |
|---|---|
| HEVC | The default, and the codec MoltenVR Free uses |
| H.264 | Pro |
| PyroWave | Pro, USB only. Trades bandwidth for lower latency |
The stream runs at up to 120 Hz, and Quest 3 gets its extended refresh rates on top. If a game can't keep up, turn on Steady frame rate: it locks to half the refresh rate so motion stays even.
Troubleshooting
If the headset doesn't show up over USB:
- Check the cable carries data, and try another port.
- Put the headset on and look for the Allow USB debugging prompt.
- Make sure Developer Mode is on (Quest).
- Unplug and replug the cable, then reopen the headset app.