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USB or Wi-Fi: connecting your phone to your PC for streaming

15 October 2026 · 1 min read

Cable or wireless? For a stream that has to hold up for hours, the answer is usually the cable. Here's why, and when Wi-Fi makes sense.

Why USB is the safe choice

  • Steady. A cable doesn't care if someone at home starts a download or the microwave is on.
  • Charging. The phone charges while it streams. Games plus screen capture drain a battery fast.
  • Simple. Plug in and Casttit finds the phone. No network names or codes.

When Wi-Fi makes sense

  • Your cable is too short for where you want to sit.
  • You play with a controller or a cooler that blocks the port.
  • Short sessions, with a full battery.

With Casttit, Wi-Fi works with Android phones: in the setup screen, choose No cable? Connect over Wi-Fi. For the best results, keep the PC on a cable to the router and the phone on the router's 5 GHz network, close to it.

Picking the right cable

  • Data, not charge-only. If the PC doesn't react at all when you plug in, the cable may only charge.
  • The original is best. The cable that came with the phone is a known good one.
  • Straight into the PC. Use a port on the PC itself, not a hub or a front-panel port with a long internal lead.
  • If the picture freezes now and then, try another cable and another port before anything else: most freezes are the connection. More in Troubleshooting.

The short answer

Stream on a cable; keep Wi-Fi for when a cable really won't do. Ready to set up? Android · iPhone.

Questions

Does the USB cable matter?

Yes. Some cables only charge and carry no data; then the PC won't see the phone at all. Use the cable that came with the phone or a known data cable.

Does Casttit work over Wi-Fi?

With Android phones, yes. iPhones connect over their USB cable.

Will streaming drain my battery?

Over USB the phone charges while you play. Over Wi-Fi it doesn't, and games plus screen capture use a lot of battery.

HelpSet up an Android phone with CasttitInstall the free Casttit app, allow its two permissions, choose USB debugging or the one-click setup, and start streaming your Android phone to your PC.HelpTroubleshooting CasttitFixes for common Casttit problems: Windows warnings, a phone that isn't found or is busy, no sound in OBS, a frozen picture, and invite messages.BlogHow to stream your phone's game to OBS on a Windows PCThree ways to get a mobile game into OBS on Windows (capture card, screen mirroring, or a streaming app like Casttit) and how to set each one up.