[SD/MMC] [ATTO] [CDM] Sandisk Extreme SDHC 45MB/s 32GB on USB2

Got conditional access to this very nice card (also what I plan to buy next) so ran some tests

USB3 w/USB2 reader


USB2 w/USB2 reader (port 1)


USB2 w/USB2 reader (port 2)


CDM (USB2/USB2 reader)


Looks like card reader's max speed is capped at around 150x...
Will obtain USB3 readers for retest someday

Toshiba 唔再出白卡
被 Sandisk 取代

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Toshiba 唔再出白卡
被 Sandisk 取代
usei 發表於 2012-7-31 05:50 PM

Yes, yes
Which is why prospective buyers should seriously look into getting this card instead...
For starters entering the UHS bus era, this is the one to go

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i did these tests ....in another post

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本帖最後由 anon893 於 2012-8-3 19:22 編輯

Updated with USB3 test (w/SanXi generic USB3 card reader)
Very likely this card reader is UHS104 compatible... (Correct me if I'm wrong)
Also 8-32k performance is not very good so to speak

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Updated with USB3 test (w/SanXi generic USB3 card reader)
Very likely this card reader is UHS104 com ...
anon893 發表於 2012-8-3 19:21


USB 3 card reader而家款款都係random i/o好差
你睇下你usb 3 + usb 2 card reader果張就知乜事

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USB 3 card reader而家款款都係random i/o好差
你睇下你usb 3 + usb 2 card reader果張就知乜事:xd ...
KinChungE 發表於 2012-8-4 02:06 PM

Yes...
But what does random i/o have to do with 4-32k performance?
Pls explain

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Yes...
But what does random i/o have to do with 4-32k performance?
Pls explain
anon893 發表於 2012-8-5 17:52


細size i/o, 一般稱為random i/o
大size i/o, 一般稱為seq i/o

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