This third minor release of the statcache extra is made up of a Plugin for MODX Revolution that writes out static representations of fully cacheable MODX Resources to a configurable location on the filesystem. You can then use your web server's rewrite engine (or equivalent) to serve the static files first, if they exist. This has the advantage of bypassing MODX (and PHP) entirely, allowing you to serve potentially thousands of more requests per second. It has the disadvantage of not allowing any dynamic content to be served however.
Install via Package Management.