Pimoroni PIM269 OnOff SHIM for Safe Shut Down for Raspberry Pi

Pimoroni-PIM269-OnOff-SHIM-for-Safe-Shut-Down-of-Raspberry-Pi-Pimoroni-PIM269-P-The-B-OnOff-SHIM-B-is-the-perfect-way-to-shut-down-your-Raspberry-Pi-It-adds-a-tiny-yet-very-convenient-power-switch-on-a-0-8mm-thick-board-that-is-designed-to-soldered-straight-onto-the-GPIO-pins-of-your-Pi-at-your-discretion-so-that-you-can-use-the-shim-with-HATs-and-pHATs-on-top-P-P-To-use-it-install-the-software-see-below-just-plug-your-micro-USB-power-supply-into-the-micro-B-connector-on-the-OnO

Price: 7.91 from Rapid Online Rapid Electronics Ltd.