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SD Card Shield

These are SD card shield. It provides a storage space for your Arduino. Users can read/write SD card via Arduino’s built-in SD library. It supports SD, SDHC and Micro SD cards.

SD Card Shield V3.0SD Card shield V4.0

Here lists the comparison between various versions of SD Card Shield:

ParameterSD Card Shield V3.0SD Card Shield V4.0
Operation voltage+2.7V~+3.6V+5V
Communication ProtocolSPISPI
SD Card SocketTwo Socket(SD Card Socket and Micro SD Card Socket)a standard SD Socket(included adaptor enables using of Micro SD cards)
Standard ShieldNoYes
Supported Card TypeSD card(<=2G); Micro SD card(<=2G); SDHC card(<=16G)SD card(<=16G); Micro SD card(<=2G); SDHC card(<=16G)
CompatibilityDo not compatible with MegaCompatible with Mega

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