ANSI vs ISO Layout
104/87-key ANSI layout is commonly used in US, Canada, and Australia (US QWERTY layout).
105/88-key ISO layout is commonly used in European countries and is available in various language layouts such as UK, German, Swedish, French, etc.
ANSI layout
![104-keyANSI Layout](http://blog.maxkeyboard.com/wp-content/uploads/2016/09/104_ANSI_Layout.png)
The red keys illustrate the keys that differ from ISO layout.
ISO layout
![105-key ISO Layout](http://blog.maxkeyboard.com/wp-content/uploads/2016/09/105_ISO_Layout.png)
The red keys illustrate the keys that differ from ANSI layout.