EFi-X

EFi-X is an internal USB dongle that allows users to install Mac OS X 10.5 on a small number of non-Apple-manufactured PC hardware. Mac OS X 10.6, due to the need for DSDT patches specific to the user's motherboard, is currently unsupported.
A hardware analysis conducted in September 2009 indicates that the dongle's design is based on an STMicroelectronics STM32F103Rx microcontroller, a 32-bit flash microcontroller with an ARM Cortex M3 core commonly used in the design of USB flash drives.
A software analysis conducted at the same time indicates that the software shares code with the freely-available Chameleon boot loader. This had been previously denied in a January 2009 interview by the former CEO of ASEM.
There has been some speculation that an EFi-X-equipped machine is equivalent to a Hackintosh. However, in December 2008 Davide Rutigliano, then CEO of Art Studios Entertainment stated that "when I said that we at ASEM do not condone the merchandising of clones, I meant it. The press saw the 'Millennium' project as a clone project, and I immediately ordered it to be scrapped and abandoned. Because we at ASEM do not sell or condone the sale of clones that compete with ANY brand." In 2009, there was further speculation that EFi-X is in fact just a USB flash drive booting a modified version of Chameleon.

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