Discussion in 'OT Technology' started by cleankutazn, Feb 14, 2008.
I have a corsair 8gb flash voyager and wanted an SD card that can compete with it.
if you get one of the faster sd cards, yes.. they are quite quick.
SD cards are faster than USB. Pretty much every kind of memory card is faster than USB. That's why they don't use USB drives in cameras.
I have a SanDisk Extreme III card (with ESP!) that I'm quite fond of. It runs at 133x -- whatever the hell an "x" is for an SD card.
NOT true. I see you're talking out your ass, again.
A "usb drive" is just flash memory and a bridge. Same as a SD card is just flash memory.
Rating Speed (MB/s)
So a standard card is a 40x, which gives 6MB/sec which is equal to 48Mbps...
USB 2.0 is 480Mbps theoretical...
This is why high performance SD cards are becoming very common.
A 133x card is 20MB/sec which is 160Mbps.... still short of USB 2.0 speeds.
Christ almighty, I was talking about USB drives, not USB ports. The bridge controller on a USB drive slows it down, and like you said, SD cards don't have that bridge controller.
in order to be useful, an SD card must be inserted into a card reader. The bridge is in the card reader.
When you plug it into a computer, yes. When you plug it into a camera, no. The camera interfaces directly with the FLASH.
a 133x card is 20MB/sec which is 160Mbps.... still slower than USB... Even at "max theoretical" speed of the SD card.
160Mb/s is slower than USB 2.0 spec, but is it slower than the max throughput of the bridge controller on the OP's USB drive? Let's ask him to do a transfer benchmark or something, if we really want to get a useful answer.
I only get 20MB read and Write on my corsair flash voyager....I haven't been able to buy a fast SD card yet...I was thinking of getting compact flash, it has 300x speeds
compactflash is nice, but SD is more popular nowadays, not least because the slots are smaller. Gotta keep in mind that it's useless if you can't plug it in.
(that said, I backup my stuff on a Microdrive)
Are the kaser 30gb microdrives any faster than my corsair voyager?
I don't know. I have Hitachi 6GB microdrives, which are not as fast as most compactflash, but have an unlimited lifetime.
I'm testing how long mine will last by using it to d/l bitorrent files everyday and constantly erasing it and transferring files to my HD.
Make sure to defrag it after every use, too.
not really. Compact Flash is still VERY popular for DSLR... And card readers arn't going anywhere.
..I don't wanna kill it that fast
I was thinking more along the lines of point/shoot pocket cameras and the users who love them.
As you're well aware, some casual users have had issues using card readers effectively in the past.
the same users that dislike card readers are likely not to desire a card for the same purposes as the OP.
Unless they have a digital camera.
no, because that type of users doesn't care about the card.... it gets inserted into the camera and is left there. As far as they know/care there is no card, and the camera might as well have built-in memory.