faster download card reader?

[Mr_3lmo]

Let's look at this logically instead of blindly following the blind.
Forget about getting another card reader.

Given you have a fast card, 150X card (150 * 145kb [yes, that is the official 1x speed] = 22mb/s).

4000/22 = 182 seconds = 3 min at least.

That's assuming you can hit a sustained 22mb/s (don't even dream, there's none) instead of a burst of 22mb/s.

Even with Extreme III, they can only promise a sustained 20mb/s for sequential read/writes (best case situation) Meaning, unless you are writing/reading a single 4gb sized file file, you will not hit 20mb/s.

Given that each RAW file is say, 10mb, and for each file you have to perform a read of the FAT Table.. you're more realistically hitting (estimated) 15mb/s. you'll need 4000/15/60 = 4.44min for the entire 4gb.

Use any USB 2.0+ card reader, they won't differ much.

I agree that any increase over competing [good] USB2.0 card readers is not going to make much of a difference. Even copying [that many] files within a single harddisk, I cannot get 4GB of my data to be done within a minute. If I RAID 2 raptor harddisks, a minute should be possible internally? To be honest, 4-5 minutes for that matter for 4GB, is pretty decent already....

If we could control our shots at source, so much so that every shot that remains in the card to be downloaded is a shot that we want [80% of the time], then we can control the volume that needs to be transferred to our computer, and would be a time saving factor [which in my opinion is going to make a bigger difference to the downloading time]. Make no mistake about it, I do not like to wait also, but editing all that photos is a bigger pain for me in terms of time rather than the time it takes for the transfer to go through :bsmilie: :bsmilie: Just my POV.

Cheers.

 

[psalm27]

can someone recommend me a super fast CF card reader?
mine is taking ages to download a 4GB card.takes about 4-5 minutes!

pls advise on
1)brand
2)price
3)where to buy

thanks:heart:

Been tracking the discussion on this matter. 4~5 minutes to transfer 4GB card is pretty fast. Unless you are pressing on time during photo shoot you need an ultra fast transfer rate reader - maybe 1~2 minutes. But this could only be a dream and if it is available, be ready to burn a BIG HOLE in your pocket.

 

[ExplorerZ]

Been tracking the discussion on this matter. 4~5 minutes to transfer 4GB card is pretty fast. Unless you are pressing on time during photo shoot you need an ultra fast transfer rate reader - maybe 1~2 minutes. But this could only be a dream and if it is available, be ready to burn a BIG HOLE in your pocket.

i would say pretty impossible to transfer 4GB of file in less than 2min(current card technology)
the fastest card is only about 150x which somewhat only give a 22MB/s rate. and transferring 4GB of data at that rate, you still need at least 3min like what unseen have said.(giving that all condition are at its optimal, which impossible 99.99% of the time)

 

[psalm27]

i would say pretty impossible to transfer 4GB of file in less than 2min(current card technology)
the fastest card is only about 150x which somewhat only give a 22MB/s rate. and transferring 4GB of data at that rate, you still need at least 3min like what unseen have said.(giving that all condition are at its optimal, which impossible 99.99% of the time)

I agree with you, ExplorerZ. You are absolutely right that it will take at least 3 minutes or more to complete transfer 4GB of data. I've not try the express card adapter on my notebook computer. It is suppose to tansfer data for SD card to HDD fast, just don't know how fast. I guess it will be at least 3 minutes or more.

 

[westwest1]

I agree with you, ExplorerZ. You are absolutely right that it will take at least 3 minutes or more to complete transfer 4GB of data. I've not try the express card adapter on my notebook computer. It is suppose to tansfer data for SD card to HDD fast, just don't know how fast. I guess it will be at least 3 minutes or more.

3mins for 4GB...wah..thats very fast...:bigeyes:

go toilet and come back just nice...

 

[ExplorerZ]

3mins for 4GB...wah..thats very fast...:bigeyes:

go toilet and come back just nice...

3min is assuming that the transfer speed sustain at the maximum speed of the card which in this case is 150x. but i can safely say this is IMPOSSIBLE.
thats why in my very first post, i said 4-5min for a 4GB card is considered faster than what most card reader can achieve.