Feature:
Wrong level translation that overstress with 5V levels the SDcard ! Wrong: Here translation made with 74HC125 that have a path (over diode) from input to VCC. Translator should be an 74AHC125 that does not have this diode (as the original made by ladyada)
Is this module working with Induino Mega 2560 (ST1026)?
I have no idea what pin chip select (CS) is assigned to, but I've tried several to no avail.