On 2010-06-08 14:22 , Adam Maas wrote:
My PC has a SD reader in it. Like most built-in readers it's
convenient but rather much on the slow side. I use my Sandisk 12-in-1
reader instead.
i'd be interested to hear how fast it is in practice
the MacBook Pro SD reader is pretty fast; Apple says it can do 30 MBps
i did a casual test using on my system, a 2009 13" MacBook Pro with a
lot of other apps running; i copied a 1.75 GB folder from a heavily-used
2yr old Transcend SDHC class 6 8GB card; brand new, this card may have
been capable of 20 MB/sec
using the SD slot on the computer: 112 seconds (15.7 MB/sec)
using a PNY "150x SDHC" reader: 130 seconds (13.5 MB/sec)
using the USB cable to connect to my K200d: 193 seconds (9.1 MB/sec)
in practice, this is not a huge difference though, because i usually do
other things while copying; the biggest value of the SD card slot is
convenience
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