Tester 4 SparkFun - Breakout Board for microSD Transflash v4 2012-09-05 MicroSD SD storage //obsolete//Storage SparkFun BOB-00544 !!!ATTENTION!!! - this obsolete version causes an error in the gerber output! please update the part! https://www.sparkfun.com/products/544 Breakout board for the microSD socket that is not much bigger than your fingernail. Compatible with the SPI interface found on any SD card, this tiny form factor was created for cell phone storage and is perfect for your next MP3 project! Board comes fully assembled and tested. The bare socket is available. ground

serial clock

voltage collector collector - IC power supply pin

data in

card select

card detect

data out