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Home  >  Secure Digital (SD) >  Item # SDSDX004GX46 (MFR# SDSDX-004G-X46)
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4 GB Extreme HD Video Secure Digital HC Memory Card (SDSDX-004G-X46) 20MB/s
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Sandisk 4 GB Extreme HD Video Secure Digital HC Memory Card (SDSDX-004G-X46) 20MB/s

Discontinued.
Condition: Brand new, USA Warranty
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.

Serious professional photographers who demand one of the fastest, most rugged, and most durable memory cards on the market should choose the SanDisk Extreme III SD card. Built to work under the most challenging conditions, with SanDisk Extreme III youll get more speed, better performance, and unmatched reliability.

Thats because only SanDisk Extreme III 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 20MB 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 III 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. 

SanDisk Extreme III expands its award-winning, professional line of memory cards with a new 4GB SDHC (Secured Digital High Capacity) card.  The SanDisk Extreme III 4GB SDHC memory card offers speed, performance and reliability to ensure you get your photos every time. A 4GB memory card can store more than 2,000 high-resolution pictures or up to 8 hours of MPEG 4 video
 
Advanced Features:
  • Fast 20MB/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 6 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 6 is currently the highest rating defined by SDA, it doesn't necessarily mean that a speed class 6 is the fastest card that a consumer can buy for all applications.

By contrast, SanDisk's minimum performance rating of, for example, 20MB/sec on Extreme III 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 and price points.  SanDisk Extreme III cards are also speed class 6 rated

Customer Reviews
Sandisk 4 GB Extreme HD Video Secure Digital HC Memory Card (SDSDX-004G-X46) 20MB/s

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5 out of 5 stars   picture this!
By eddiedoon (orange,Ca.) January 19, 2012
Review submitted for Sandisk 4 GB Extreme HD Video Secure Digital HC Memory Card (SDSDX-004G-X46) 20MB/s (SDSDX004GX46)
Verified Purchaser
Pros: Reliable Performance, Easy To Use, Great Value, Large Capacity
Cons:
Other Comments: great for the camera.
I recommend this product Yes, I recommend this product
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5 out of 5 stars   Awesome
By Dallas (Temecula Ca) January 06, 2012
Review submitted for Sandisk 4 GB Extreme HD Video Secure Digital HC Memory Card (SDSDX-004G-X46) 20MB/s (SDSDX004GX46)
Verified Purchaser
Pros: Reliable Performance, Easy To Use, Large Capacity
Cons:
Other Comments: Very good
I recommend this product Yes, I recommend this product
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5 out of 5 stars   Great product!
By Leo (ohio) January 06, 2012
Review submitted for Sandisk 4 GB Extreme HD Video Secure Digital HC Memory Card (SDSDX-004G-X46) 20MB/s (SDSDX004GX46)
Verified Purchaser
Pros: Reliable Performance, Great Value, Writes/Reads fast
Cons: None
Other Comments: San Disk always has the best memory cards. They cost few dollars more than other brands, but are worth it. It's a class 6 but it's really fast. HD video records fine to it. I'm always a San Disk fan when it comes to memory cards.
I recommend this product Yes, I recommend this product
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5 out of 5 stars   Would buy again
By jhoock11 (Rochester Ny) January 05, 2012
Review submitted for Sandisk 4 GB Extreme HD Video Secure Digital HC Memory Card (SDSDX-004G-X46) 20MB/s (SDSDX004GX46)
Verified Purchaser
Pros: Large Capacity, Great Value, Reliable Performance, Easy To Use
Cons:
Other Comments: Very good value.
I recommend this product Yes, I recommend this product
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5 out of 5 stars   Fastest Delivery To Store My Video's!!
By HulkLincoln (Lincoln, NE) January 05, 2012
Review submitted for Sandisk 4 GB Extreme HD Video Secure Digital HC Memory Card (SDSDX-004G-X46) 20MB/s (SDSDX004GX46)
Verified Purchaser
Pros: Perfect capacity, PRICE was Outstanding, Reads QUITE FAST
Cons:
Other Comments: I received a small handhelp video cam as a gift and the first thing i noticed was NO STORAGE CARD. The next hour i went on [@] and noticed they were over 60% off and free shipping and goodness gracious, I GOT IT and it ARRIVED QUICK!!
I recommend this product Yes, I recommend this product
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