The Mac application, known as Turbo.264 HD SE (for Software Edition), is essentially a converter for encoding HD video for consumption on the Web or on other devices. The Software Edition uses sophisticated algorithms to convert standard and high-def files quickly, and can also work in tandem with the Elgato Turbo.264 HD hardware to boost video conversion speeds up to four times. Turbo.264 HD SE is now included with the hardware.
A free trial version of the software, which will only encode the first 3 minutes of your video, is available for download from Elgato. Turbo.264 HD SE is available at the Elgato Online Store for US$49.95, while the Turbo.264 HD is still available for $99.95.