Serious professional photographers who demand one of the fastest, most rugged, and most durable memory cards on the market should choose the SanDisk Extreme SD card. Built to work under the most challenging conditions, with SanDisk Extreme youll get more speed, better performance, and unmatched reliability.
Thats because only SanDisk Extreme memory cards feature innovative ESP Technology for the fastest speeds and highest performance. ESP stands for Enhanced Super-Parallel Processing. Simply put, it means you are getting the fastest read/write speeds available an amazing minimum 30MB per second** sequential read and write speed speed youll definitely appreciate whenever you find yourself shooting and storing pictures in harsh environments, extreme temperatures or at high altitudes.
Every SanDisk Extreme SD card comes with RescuePRO so you can recover images, documents, mail, video, music just about any digital file, with ease. Built with leading-edge media recovery algorithms, RescuePRO lets you preview recoverable data before you try to retrieve it. With RescuePros unique recovery algorithm for MPEG audio and MPEG video recovery (MPEG-1/2/3) what you see, and what you hear, is what you can recover.
- Fast, up to 30MB/sec sequential Read/Write speeds
- Ideal for demanding photo shoots under severe weather conditions - heat, cold, wind, rain, snow, etc
- Extended temperature tested: -13F to 185F (-25 C - 85C)
- Durable, reliable and thoroughly tested for heat, cold, shock and vibration
- Class 10 speed performance rating ( based on SD 2.0 specifications)
- RescuePRO data recovery software - ensures your photos will always be there
- Dedicated technical support hotline 1-866-270-5532 ( U.S. only)
- SanDisks lifetime limited warranty (EMEA: 10 year limited warranty)
What is SDHC?
To support the higher capacity needs, SD cards are now requiring a different design. The new SD 2.0 specifications which supports 4GB and up, is called Secure Digital High Capacity (SDHC). The SD Association has created and defined 3 speed classes to help you identify speed and performance capabilities/minimum requirements of SDHC cards and their SDHC host products.
Cards address data (read and write) at numerous speeds. Many factors impede this performance. SDHC guarantees a minimum read and write speed necessary to handle recording high quality video and audio. The maximum card speed may vary, but you can always depend on SDHC cards to meet your SDHC host product's high quality performance requirements.
SDHC Compatibility Information
Because SDHC works differently (supports the new higher capacity cards) this new card format is not backwards compatible with legacy SD format host devices
The SDA speed class rating was developed to identify minimum data transfer and latency requirements for a host application and provide a means for consumers to match those requirements with an appropriately rated SD card. For example, in the emerging application of real-time video capture (camcorders, camera phones etc), in order to ensure smooth capture and playback of video, the camera buffer RAM must never experience a data over-run or under-run. This requires that the card communicate certain parameters to the camera and then meet some minimum governing parameters. An SDA speed class rating of 6 means that the card will be able to transfer (with specifically defined latencies and data allocation units) data in a random fashion without interruption. Consumers should look at the intended host device to select the correct speed class rating in the card they buy. Since speed class 10 is currently the highest rating defined by SDA, it doesn't necessarily mean that a speed class 10 is the fastest card that a consumer can buy for all applications.
By contrast, SanDisk's minimum performance rating of, for example, 30MB/sec on Extreme cards states the performance level that those cards will deliver for sequential write and read operations in non-real-time applications such as file transfers between a card and a computer or in digital cameras between the camera's buffer and the card. In this case, the statement of performance allows customers to make a relative comparison between cards of differing performance