USB Mini Hub with Power Switch : ID 2998 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
On/Off Switch for a USB-Powered Device : 4 Steps - Instructables
USB Cable with Switch : ID 1620 : $2.95 : Adafruit Industries, Unique & fun DIY electronics and kits
USB Power Strip 4-Port Hub with On/Off Switch
USB Power Switch - PiShop.us
USB-C power switch | HiFiBerry
Jolt Switch USB In-Line Amplifier and Power Adapter
USB Cable With Switch ON/OFF Toggle Power Control For Raspberry Pi Arduino New - Walmart.com
1.5 Meter USB Cable with ON/OFF Switch - Micro USB to USB Connector
USB Mini Hub with Power Switch - OTG Micro-USB : ID 2991 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: Electop 2 Pack Male to Female USB Cable with On/Off Switch, USB Extension Inline Rocker Switch for Driving Recorder, LED Desk Lamp, USB Fan, LED Strip(White) : Electronics
2 Pack USB On Off Switch 3 ft Support Data and Power Short USB Extension Cable with On Off Switch (USB Power Switch) - Newegg.com
UCTRONICS Power Switch Cable for Raspberry Pi 4 Power Supply, USB Type C Male to Type C Female Extension Cable with ON/Off Button, 11”, Black