Hallo Friends we are using cellphones, Digital Camera , Camcorder and Tablet . How to
Find the Right SD Memory Card
What Card Works Best with Your Device?
| Full SD | miniSD | microSD | SD Card Capacity | |
| SD |  |  |  | up to 2GB |
| SDHC |  |  |  | High Capacity 4GB to 32GB |
| SDXC |  |  | Extended Capacity Over 32GB up to 2TB |
Hundreds of manufacturers market thousands of memory cards and devices built to SD standards in a variety of storage capacities, speed classes and three different physical sizes: SD, miniSD, and microSD. SD memory cards are typically used in personal computers, video cameras, digital cameras and other large consumer electronics devices. The microSD and miniSD cards are commonly used in smaller electronic devices like mobile phones and tablet computers. Some memory card manufacturers offer adapters allowing microSD cards to fit a traditional SD card slot. This gives you even greater versatility and flexibility to use the card in a mobile phone as well as a computer or video camera.
To determine the right card to match your device, always consult the device's user manual or contact the manufacturer. All memory card options are readily available in the marketplace, produced and distributed by a wide range of manufacturers, in retail outlets around the world including drug stores, electronics and computer shops and Internet sites.
Note: SD memory card and SD host device are the generic terms for any memory card or device built to SD standards. SD Association does not produce, market or sell any product; it creates standards and then promotes the adoption, advancement and use of SD standards used by competing product manufacturers that make interoperable memory cards and devices. For questions related to products, please contact the product manufacturer.
Choosing the Best Card - What Memory Capacity Do I Need?
Manufacturers produce SD memory cards in a range of memory capacities designed to fit your needs and budget. Today, products using the SDXC standard will have the greatest memory capacity and fastest performance when using Ultra High Speed (UHS) standards. Products using the SDHC and UHS standards will also enjoy the fastest performance. Your device's users manual should help you select the memory card standards that are right for your device.You should consider how you will use a memory card to determine the right memory capacity and speed choice. For cameras, consider the quality of the picture resolution of every photo, and for your MP3 player, the bit-rate required for smooth playback. Take a look at our reference chart that illustrates the various storage capacities provided by our standards.
| 2 GB | 4 GB | 8 GB | 16 GB | 32 GB | |
| Movies (Hi-def movie recording MPEG-4. H.264) | |||||
| Fine mode (13Mbps/CBR) | 20 min. | 40 min. | 80 min. | 160 min. | 320 min. |
| Normal mode (9Mbps/VBR) | 30 min. | 60 min. | 120 min. | 240 min. | 480 min. |
| Economy mode (6Mbps/VBR) | 45 min. | 60 min. | 180 min. | 360 min. | 720 min. |
| Photos | |||||
| 10 Megapixels, 3648x2736, Fine mode | 770 photos | 1,540 photos | 3,080 photos | 6,160 photos | 12,320 photos |
| Music | |||||
| ACC, MP3 HQ mode, 128Kbps | 34 hr. 7 min. | 68 hr. 14 min. | 136 hr. 27 min. | 272 hr. 54 min. | 545 hr. 48 min. |
* All numbers are approximate. Actual storage will depend on size of data and compression used.
How to Pick the Best Speed
For greatest performance, users should pair their devices with the corresponding SD memory card. Your device's user manual will help you select a memory card built to the same SD standard as your device to maximize your device performance.
Greater Performance Choices
SD Speed Class standards were created to support video recording. SD memory card manufacturers use different types of flash memory to create an SD memory card, so actual transfer speed can vary. Varying speeds make it difficult to determine which card will provide reliable recording of streaming content because recording video requires a constant minimum write speed to ensure a smooth playback. The SD Association defines Speed Class standards indicated by speed symbols to help consumers decide what card will provide the required performance. There are two kinds of speed indications regarding SD bus generation:
|   |
UHS Speed Class is designed for UHS** devices only and designates minimum writing performance to record video on UHS products. The UHS Speed Classes defined by the SD Association are UHS Speed Class 1 (U1) and UHS Speed Class 3 (U3).
* (Speed Class and the UHS Speed Class are two different speed classes.)
**UHS (Ultra High Speed), the fastest performance category available today, defines bus-interface speeds up to 312 Megabytes per second for greater device performance. It is available on SDXC and SDHC memory cards and devices.
| Marks | Operable Under | Applications | SD Memory Card | |
| Speed Class |  | High Speed Bus I/F | Full HD video recording HD still consecutive recording | SD, miniSD, microSD SDHC, miniSDHC, microSDHC SDXC, microSDXC |
  | Normal Bus I/F | HD ~ Full HD video recording | ||
 | SD video recording | |||
| UHS Speed Class |  | UHS-I Bus I/F UHS-II Bus I/F | Full higher potential of recording real-time broadcasts and capturing large-size HD videos (UHS Speed Class1 denotes a 10 MB/s minimum write speed) | SDHC UHS-I and UHS-II, SDXC UHS-I and UHS-II |
 | Capable of recording 4K2K video (UHS Speed Class 3 denotes 30 MB/s minimum write speed) |
