Sandisk Ultra Mark2 8G 的速度與標示不同 - 儲存設備

By Charlotte
at 2010-05-17T01:11
at 2010-05-17T01:11
Table of Contents
這兩天從 pchome 買了張 Sandisk 出的 Ultra Mark2 8G 卡
http://shopping.pchome.com.tw/?mod=item&func=exhibit&IT_NO=DGAG0H-A47347526&SR_NO=DGAG0T&ROWNO=3
卡上也如圖一樣的標示了 30MB/s
但實際用讀卡機測試下速度只有到寫入 9MB/s 跟讀取 15MB/s
放進 PSP 用測速軟體跑出來的數據,還有另外拿 HDTunePro 測的數據也都跟這差不多
我另外有買一張也是標了 30MB/s 的 SD ExtremeII 卡要給相機用,測試速度也是
只跑到讀寫各 15MB/s 左右
請問這 30MB/s 不是應該指最低速度保證?還是說我理解有問題?
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儲存設備
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