I needed some adapters for a recent project. So far this is the cheapest option I've found. I used the term "cheapest" because the quality is consistently as good as any other adapter of this type I've purchased in the past. I would recommend them to anyone looking for a good DB9/RJ45 adapter. .
USB to USB Type-C adapter
18 Review
Cable Baseus Cafule USB - Lightning, 1 m, black/red
26 Review
Cable Matters USB C to HDMI Adapter - 4K 60Hz, 60W Charging, Thunderbolt 4 Compatible for MacBook Pro, iPad Pro
12 Review
4K / 30Hz USB-C to HDMI Adapter - 3-in-1 Type-C Converter Cable for MacBook Pro, MacBook, Mac Pro, iMac, Chromebook, and USB 3.0 Type-C Devices (2017/2018)
13 Review
π₯ Logitech C270 Webcam: Crystal Clear Video and Superior Quality
183 Review
Smartphone Samsung Galaxy A50 4/64 GB, 2 SIM, black
82 Review
Apple AirPods Pro MagSafe RU Wireless Headphones, White
159 Review
Logitech HD Webcam C270: Crisp 720p Widescreen Video Calling & Recording (960-000694), Lightweight and Portable at 3.15 lb.
192 Review