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Find the Right SD Memory Card

What Card Works Best with Your Device?

  Full SD 迷你SD microSD SD卡片容量
SD SD miniSD microSD 上限2GB
SDHC (高容量) SDHC miniSDHC microSDHC 4GB到32GB
SDXC (超大容量) SDXC   microSDXC 32GB以上,上限至 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
(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.
10 Megapixels, 3648x2736, Fine mode 770 photos 1,540 photos 3,080 photos 6,160 photos 12,320 photos
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.