Do you ever find yourself saying, Gee whiz I wish I could plug in 4 more USB devices to my tablet, or microcontroller with USB host, or a Pi Zero? I
3 Port Micro USB OTC 3 in 1 Micro USB to USB OTG Hub Cable Cord Adapter Connector Charging and Data Sync Transfer for Android Tablet Smartphone Supports OTG Function
OTG MicroUSB cable with power for SmartPhones and Tablets - Cablematic
3 Port Micro USB OTC 3 in 1 Micro USB to USB OTG Hub Cable Cord Adapter Connector Charging and Data Sync Transfer for Android Tablet Smartphone Supports OTG Function
Cable Adapter HUB OTG Micro USB Host to 3x USB Female with power supply
USB Mini Hub with Power Switch : ID 2998 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
USB OTG On The Go Adapter with Micro B Male & Female with Power Socket
USB Mini Hub with Power Switch - OTG Micro-USB : ID 2991 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits
MakerSpot 4-Port Stackable USB Hub HAT for Raspberry Pi Zero W V1.3 & Pi Zero W /2W with 2.4A Power Supply & 1.5m Micro USB Cable with On Off Switch
Micro USB Charging OTG Hub Splitter Cable for Smart Phone Android Tablet 4 In 1 –