On-The-Go (OTG) USB cable is able for your Android phone or tablet to host & connect the USB device such as Raspberry Pi or Arduino.
USB OTG Host Cable - MicroB OTG Male to A Female
USB OTG Host Cable - MicroB OTG Male to A Female
4 inch USB A Female to Micro B Male OTG Adapter
USB OTG Host Cable - MicroB OTG male to A female
Micro-B USB 2.0 OTG Adapter Converter Cable.USB OTG Cable w/ Power Cable Y Splitter Charging Cable for 2.5HDD SSD for Android - AliExpress
Connect your USB On-the-Go capable tablet computer or Smartphone to USB 2.0 devices (thumb drives / USB mouse / keyboard etc.) Connect a thumb
StarTech.com 5in Micro USB to USB OTG Host Adapter - Micro USB Male to USB A Female On-The-GO Host Cable Adapter (UUSBOTG)
American Raspberry Pi Shop. One stop shop for all your Pi needs. Raspberry Pi add-ons, HATs, accessories, Starter Kit, Media Center kit, RetroPi
USB OTG Host Cable - MicroB OTG male to A female
Connect your USB On-the-Go capable tablet computer or Smartphone to USB 2.0 devices (thumb drives / USB mouse / keyboard etc.) Connect a thumb
StarTech.com 5in Micro USB to USB OTG Host Adapter - Micro USB Male to USB A Female On-The-GO Host Cable Adapter (UUSBOTG)
Micro USB to Micro USB OTG Cable - 10-12 / 25-30cm long : ID 3610 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
USB OTG Adapter,2-in-1 Micro USB to Type A Female OTG Cord w/ External
Micro USB Host OTG Cable with External Power Supply 0.2m
Comprehensive OTG USB A Female to Micro USB B Male USBAF-MCBMRA
3 in 1 Micro USB HUB Male to Female Double USB 2.0 Host OTG Adapter Cable (Black)