What is SD/SDHC/SDXC/SDUC？

SD (Secure Digital), SDHC (Secure Digital High Capacity), SDXC (Secure Digital eXtended Capacity), and SDUC (Secure Digital Ultra Capacity) are progressive standards for memory cards, each offering increased storage capacity and improved performance.

Simply Put:

Think of these standards as increasingly spacious homes. SD is a cozy studio for basic needs. SDHC is a family home with more room. SDXC is a mansion for large digital collections. SDUC is a vast estate with near-limitless capacity. Each step up offers more space and faster, more efficient access to your data.