I use this memory card in a Lenovo ThinkPad Twist. It uses a PCIe Realtek memory card reader, which I fine tuned by bypassing Lenovo's drivers and use the latest reference ones from Realtek directly.In short, I care about bottlenecks that things like a USB card reader adds.I run apps and thousands of files from this card, streaming atop Bitlocker To Go in Windows 8. Already I've poured multiples of the 32 GB capacity in reads and writes to this fingernail-sized drive, and it has kept going.An unbelievable deal, as I'm normally pretty cheap on these things... but I'm glad I was able to get the best for cheap... for once.