This is definitely not something I can recommend. Those 4K random writes...
Advertised performance was 133x, 45MB/s read and 15MB/s write (written on packaging). CompactFlash card does not meet 133x speeds (133 * 150KB/s / 1024KB/MB = 19.483MB/s write speed) CF card does not meet advertised read speed. CF card does not meet any advertised speeds in 4KB random operations (cached and uncached).