W520's SD-card reader; how fast is it?

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Does anyone know the speed of the SD-card reader of the W520?

In other words: Will I see full performance with, say, Sandisk "95 MB/s" SDHC cards when transferring files?

I do have a W520, but the only SD-card I have is a three-year old micro-SD card, so I don't really have anything to test it's maximum throughput.