USB OTG - it´s better to be a master than a slave

USB OTG (On-The-Go) cable enables for example a simple connection of USB slave devices with a smartphone.

EYOOLD USB 3.0 to SATA and IDE Adapter, External Hard Drive Ultra Recovery Converter for Universal 2.5 3.5 IDE and SATA HDD SSD, 5.25-inch DVD/CD-ROM Optical Drive, Easy to Use

Trying to upgrade my hdd but Chimp doesn't get past the initial screen. The slave drive is a sata with an adapter. I know the drives are good.. is it the adapter (

usb device - How to switch between usb host and slave mode on a micro usb programatically? - Electrical Engineering Stack Exchange

Arduino I2C and Multiple Slaves : 8 Steps - Instructables

Cable Matters 2-Pack Micro USB OTG Adapter (Micro USB OTG Cable) 6 Inches : Cell Phones & Accessories

Any work or interest in Dali-Master Dali-Slave - Networking - RIOT

USB - Wikipedia

How to realize a master module to connect multiple slaves?

I2C Slave Addressing with 7-bit, 8-bit, and 10-bit

Connect 2 PCs, one has internet via USB-tethering - Network - Manjaro Linux Forum