microSD is a type of removable flash memory card used for storing information. SD is an abbreviation of Secure Digital, and microSD cards are sometimes referred to as µSD or uSD. The cards are used in mobile phones and other mobile devices.

It is the smallest memory card that can be bought; at 15 mm × 11 mm × 1 mm (about the size of a fingernail), it is about a quarter of the size of a normal-sized SD card. There are adapters that make the small microSD able to fit in devices that have slots for standard SD, miniSD, Memory Stick Duo card, and even USB. But, not all of the different cards can work together. Many microSD cards are sold with a standard SD adapter, so that people can use them in devices that take standard SD but not microSD cards.

TransFlash and microSD cards are the same (they can be used in place of each other), but microSD has support for SDIO mode. This lets microSD slots support non-memory jobs like Bluetooth, GPS, and Near Field Communication by attaching a device in place of a memory card.

MicroSDHC format is a newer version of the MicroSD which is not backwards compatible. Some older devices cannot use the newer format, although third party firmware is available for some devices.

TransFlash cards are sold in 16MB and 32MB sizes. microSD cards are sold in many sizes, from 64 MB to 32 GB, while microSDHC cards are sold in sizes between 4 GB to 64 GB. Larger ones are microSDXC memory cards, sold in sizes between 8 GB and 1 TB.

Cackle Telecommunications is proud to provide MicroSD Card to NZ businesses. Choose from a selection of vendors, explore our products to find the right solution for you.