SDHC card timings

With HDTune on Windows XP Pro SP3 (PC with 3.0 GHz Xeon, 2 GB RAM) (2009-05-06)

Device                           #Megabytes/second (read access)
------------------------------   -------------------------------
Western Digital WD160JD-75HBB0      55   MB/sec    (hard drive, for comparison)

Topram 16 GB SDHC class 6           17.2 MB/sec

Transcend 16 GB SDHC class 6        15.1 MB/sec
   
Lenxs 16 GB SDHC class 6             6.6 MB/sec

SDHC cards tested with Transcend SDHC card reader (522433 8815), and Topram "SD/MMC Reader" (timings the same with both readers). All three SDHC cards were purchased new on 5/5/2009.