1.2m (4ft) USB 2.0 USB-A to Micro USB M/F Extension Cable with Power On/Off Switch for Raspberry Pi - Micro Connectors, Inc.
sourcing map USB Cable with ON/Off Switch, USB Male to Micro USB Male Extension Cord 1M, for LED Desk Lamp (Black, Pack of 2) : Amazon.co.uk: Computers & Accessories
USB Cable with Switch - Type A Male to MicroB [USB-Power-Cable-A/MicroB-lite] - US $1.50 : HAOYU Electronics : Make Engineers Job Easier
USB-A to Micro USB-B cable with Switch | Elektor
Amazon.com: MECCANIXITY USB Cable with ON/Off Switch, USB Male to Micro USB Male Extension Cord 2M Black, for LED Desk Lamp : Electronics