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| Sandisk 512 MB Secure Digital Ultra II (SDSDH-512-901) From Amazon (US) for $35.99 Up to 60x Speed for use with High-Megapixel Digital Cameras / Secure Digital Compatible / Holds up to 512MB Data SanDisk Ultra II Digital Memory flashcards are ideal for your most demanding photo shoots, including photo journalism and event, sports, nature and fashion photography, when using high-resolution Digital-Camera equipment. Up to 60x Processing speed: 9 MB per second write and 10MB per second read speeds Faster write speed means less time between shots for rapid-fire picture-taking High-density flash memory and optimized controller technology lets you save large image files faster than ever Especially useful with cameras that have 5 Megapixel CCDs or higher From J&R for $34.99 CARD From TechDepot for $38.95 The Ultra II Secure Digital Card from Sandisk is a highly secure stamp-sized flash memory card. With a high storage capacity of up to 512 MB, the SD Card lets you store large amounts of data and images. It offers minimum sustained write speeds up to 9 MBps and read speeds up to 10 MBps for quick copy/download. The Ultra II SD Card can be used in demanding photo shoots, including photojournalism as well as events, sports, nature and fashion photography. From Dell Home for $59.49 The Ultra II Secure Digital (SD) Card from SanDisk is a highly secure stamp-sized flash memory card. With a high storage capacity of up to 512 MB, the SD Card lets you store large amounts of data and images. It offers minimum sustained write speeds up to 9 MBps and read speeds up to 10 MBps for quick copy/download. The Ultra II SD Card can be used in demanding photo shoots, including photojournalism as well as events, sports, nature and fashion photography. From Dell Home for $66.99 |
Performance is worth the price premium. (Rating: 4.00) Review : I just received a SanDisk 512MB Ultra II Secure Digital card and did a quick & dirty performance comparison with the non-ultra SanDisk SD card. If you just want the results, then go to the bottom of the review. For the more inquisitive, here is my test configuration: linux-2.4.22 (with ehci to enable usb2.0) connected to . . . commands for the write test: The first command forces any writes to the flash_memory to happen immediately, so there is no caching going on. The second command reads through the ~50MB testfile and caches it into memory (no need to access the hard disk). The third command actually copies the test file to the memory card and times it. commands for the read test: The first command unmounts the flash memory and clears the cache. The second command mounts the flash memory so the computer can access its files. The third command actually copies the file, which must be read directly from the card because we cleared the cache, and times the copy. The read and writes tests were performed multiple times, and the results varied little between iterations. The 512MB card was completely empty, and the 256MB card had a small 3MB file. The SanDisk Ultra II card turned in some impressive numbers: For comparison, here are the numbers for the SanDisk 256MB non-ultra card: If you need performance, then the SanDisk Ultra II series is the way to go. The Ultra II reads and writes more than five times as fast as the plain-vanilla SanDisk secure digital card. In my case, I will be using the card to store MP3 files for a portable audio device, and waiting around while moving MP3s is not how I want to spend my time. So, I bought the Ultra II. Your needs may vary. Buy accordingly. Also, I realize that other manufactures market "high-performance" memory cards, but since I don't own one, I can't recommend/jeer them here. is WOW!!!! This is probably the best purchase I have ever made. This thing is everything I ever expected and more!! It's very easy to use as well! I have bought other brands before, and this one just blows everything else out of the water! I have to say, everyone out there who is thinking of buying this, stop thinking. I bought it and I am extremely happy with it the moment I powered this thing on. YOU ABSOLUTELY POSITIVELY CANNOT GO WRONG WITH THIS PURCHASE! I GUARANTEE IT!!! |
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