Stats - Simple macOS system monitor in your menu bar.
iStat Menus - "An advanced Mac system monitor for your menubar."
Beaconly - Flexible, easy to use data aggregating menu app that ties relevant information in a macOs menu bar.
MenuBar Stats - Advanced Mac system monitor right from the menu bar
Sidebar Diagnostics - SidebarDiagnostics - A simple sidebar for Windows desktop that displays hardware diagnostic information.
iStatistica Pro - System monitor. Reinvented. 💻 🖥