Breakout with microSD socket and level shifter.
Arduino Connection (IDE Example Sketches: File->Examples->SD
):
Uno -> Breakout
---------------
5V -> 5V
GND -> GND
13 -> CLK
12 -> DO (MISO)
11 -> DI (MOSI)
4 -> CS
Mega -> Breakout
----------------
5V -> 5V
GND -> GND
52 -> CLK
50 -> DO (MISO)
51 -> DI (MOSI)
4 -> CS