With SD and MMC memory prices dropping, the time is right for mass storage and datalogging. This breakout board will allow you to breakout the SD/MMC socket to a standard .1" 10-pin header. Perfect for breadboarding and the likes. Board comes fully assembled and tested as shown. Project description, more information and ordering can be found at https://www.sparkfun.com/products/11403 Datasheet: http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Components/General/SDMMCCardSock.pdf Simplified SD Specification: http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Components/General/SDSpec.pdf Maxim App Note using the MAXQ2000: http://www.maxim-ic.com/appnotes.cfm/an_pk/3969 Kronos Robotics: http://www.kronosrobotics.com/Projects/MMC.shtml