Pro Duo memory sticks are used mainly used is Sony PSP's, PS3's and some mobile phones.
SanDisk's RapidGX Gaming Memory Card turns the PSP (PlayStation Portable) device into a fully loaded multimedia entertainment unit. SanDisk is providing gamers the latest in technology and high performance, with the ease of use in managing and transferring digital media files to and from the PSP.
Pro Duo memory sticks are used in a multitude of devices. PSP's, PS3's mobile phones being the most popular.
RapidGX is a high performance MS PRO Duo gaming card and it is preloaded with a full version of the RapidGX Media Software, a PSP Management software that allows you to organize your PSP files, transfer to and from the PSP, and most of all, it converts your video files automatically to the PSP format. It is also bundled with a MicroMate Reader to maximize the high performance of the RapidGX card (15MB/sec read and write) and the transfer speed via a USB 2.0 port. RapidGX is the only gaming card on the market that offers an all-in-one solution with both high-speed performance and a PSP management software. SanDisk's RapidGX high performance bundle allows you to download your large files faster, such as videos, to maximize your valuable time.
This deal will be voted cold, despite it being the best price available on HUKD at the moment. :)