"The coolest feature on the AV32 is the support for both DDR and SDR SDRAM
which is ideal for people who already own PC100 / PC133 RAM. Despite this,
having the ability to use either type of SDRAM is extremely useful and will
save you a fair chunk of change if you already own SDR SDRAM."
FULL STORY @ NEOSEEKER (http://www.neoseeker.com/Articles/Hardware/Reviews/shuttle_av32/)