Memory Cards – How to Choose the Right SD or Micro SD Card

Understanding types and capacities

SD cards come in three main categories: SD (up to 2GB), SDHC (up to 32GB) and SDXC (over 32GB). For modern phones and cameras, choose SDHC or SDXC – models like INTENSO 64GB SDHC Class 10 brzina čitanja 20MB/s 3411490 offer solid capacity for photos and HD video. For professional use or 4K recording, cards like KINGSTON Memorijska kartica SDR2V6/256GB 256GB SDXC UHS-II 280R/150W U3 V60 deliver extreme speeds and massive storage.

Speed classes explained

Class 10 guarantees a minimum of 10MB/s, sufficient for Full HD video. UHS Speed Class (U1/U3) and Video Speed Class (V30/V60/V90) are critical for 4K and 8K recording – V60 means a stable 60MB/s required for professional video formats. The A1/A2 (Application Performance Class) rating indicates cards optimized for running apps directly from your phone.

UHS-I vs UHS-II bus interface

UHS-I cards use a single row of contacts and reach up to 104MB/s, while UHS-II adds a second row for speeds up to 312MB/s. You can recognize UHS-II cards by the two rows of metal contacts on the back. For photographers shooting RAW bursts or videographers working with high-bitrate formats, UHS-II technology dramatically reduces data transfer times.

Choosing for specific devices and uses

Phones and tablets use the Micro SD format – cards like SANDISK SDXC 64GB Micro Extreme Pro 200MB/s A2 C10 V30 UHS-I US+Ad combine compact size with A2 performance ideal for Android apps. Cameras typically require full-size SD cards with high read speeds for rapid photo bursts. Action cameras and drones need at least V30 class for stable 4K recording without dropped frames.

Reliability and brands

Brands like SANDISK, Kingston and Samsung offer lifetime warranties on premium card series. Transcend and ADATA represent quality choices in the mid-price range with solid performance. Avoid unknown brands for important data – counterfeit cards often display incorrect capacity or fail after brief use.

Common buying mistakes

The biggest mistake is buying excessive capacity without checking compatibility – older devices don't support SDXC over 32GB. Another common trap is ignoring write speed (W rating) – a card may have fast read but slow write performance. Always verify that your device supports the card's maximum speeds – buying a UHS-II card for a phone that only supports UHS-I is wasted money.

Selection and Pricing

We offer 55 products from 14 brands across 6 sellers. Prices range from 158 to 35,399 RSD. Currently 20 products are on sale with an average discount of 14%.