USB Webcams are Sold Out. Here Is How to Use Your iPhone Instead - Make:
Bidirektionaler USB 3.0 Switch,MLEEDA USB Umschalter 2 in 1 Out/1 in 2 Out für 2 PC Teilen Drucker Maus Klaviatur Webcam IPhone.mit Desktop Controller und 2 USB3.0-Kabel : Amazon.de: Computer & Zubehör
How to easily use your iPhone or Android as a webcam - CNET