The mXT143E Xplained kit features a standard size SD memory card connector. The interface for the SD Card is SPI only, and there is no support for 4-bit mode. The MOSI, MISO and SCK lines of the SPI interface is routed from the header J1, while the chip select (~CS) and card detect (CD) lines are routed to the J2 header. See Table 1 for more details.