StarTech.com 5in Micro USB to USB OTG Host Adapter - Micro USB Male to USB A Female On-The-GO Host Cable Adapter (UUSBOTG) - USB adapter - USB to Micro-USB Type B - 12.7 cm

Connect your USB On-the-Go capable tablet computer or Smartphone to USB 2.0 devices (thumb drives, USB mouse or keyboard, etc.). The UUSBOTG Micro USB On-The-Go (OTG) Adapter Cable features a Micro USB male (B-type) connector and a USB female (A-type) connector, delivering a simple way to convert your Micro USB OTG capable tablet computer or Smartphone into a USB On-the-go host, and enables you to connect a USB peripheral device such as a thumb drive, or USB mouse or keyboard, etc.

Price: £3.58 from Currys Business