microSD

Technology & Computing abbreviation · Computer Hardware

microSD
Stands forMicro Secure Digital
CategoriesTechnology & Computing

microSD stands for Micro Secure Digital, a computer hardware abbreviation.

Tiny memory card, 15 by 11 mm, used in smartphones, the Nintendo Switch, drones, dash cams and action cameras. Adapters let microSD cards fit full-size SD slots.

Example: The Switch 2 only accepts microSD Express cards for storing games.

Usage notes

The format began as SanDisk's TransFlash in 2004 and was adopted by the SD Association in 2005. Like full-size cards, it comes in microSDHC and microSDXC capacity classes, with A1 and A2 marks for app performance. microSD Express cards use a PCIe and NVMe interface for SSD-like speeds. Many flagship phones have dropped microSD slots in favor of fixed storage.

More computer hardware abbreviations

  • LGA – Land grid array
  • LPDDR – Low-Power Double Data Rate
  • LTO – Linear Tape-Open
  • M.2 – M.2 (Next Generation Form Factor)
  • mATX – Micro-ATX
  • MFP – Multifunction printer
  • Mini-ITX – Mini-ITX motherboard form factor
  • MIPS – Microprocessor without Interlocked Pipeline Stages
  • MLC – Multi-level cell
  • MoBo – Motherboard
  • MTBF – Mean time between failures
  • NAND – NOT-AND (NAND flash memory)

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Edited by the AbbreviationList.com team. Spotted an error or a missing meaning? Contact us.