What is the difference between SDUC, SDXC, SDHC and SD cards?

  • SD cards are in the following capacities 4,8,16,32,64,128,256 512MB and 1GB, 2GB only.
  • SDHC cards are available in the following capacities: 4, 8, 16, 32GB
  • SDXC cards are available in the following capacities; 64, 128, 256, 512GB, 1TB, 2TB
  • SDUC cards are available in the following capacities 4, 8, 16, 32, 64, 128TB
  • SDUC memory cards must only be used with SDUC devices.
  • SDXC memory cards can be used with SDXC devices and SDUC Devices.
  • SDHC memory cards can be used with SDHC devices, SDXC devices and SDUC Devices
  • SD memory cards can be used with SD devices, SDHC devices, SDXC devices and SDUC Devices. SDUC (Secure Digital Ultra Capacity), SDXC (Secure Digital eXtended Capacity) and SDHC (Secure Digital High Capacity) were established to meet the growing demand for data heavy apps, 8K, 4K, and HD video and high-resolution image photography. SDUC / SDXC / SDHC are all the same physical size and shape as standard SD.