Logitech MX Vertical Wireless Mouse – Advanced Ergonomic Design Reduces Muscle Strain, Control and Move Content Between 3 Windows and Apple Computers (Bluetooth or USB), Rechargeable, Graphite - Newegg.com
Logitech MX Vertical Left and Right Mouse Button Microswitch Replacement - iFixit Repair Guide
Logitech MX Vertical review: Not the mouse upgrade you're looking for | Mashable