The package arrived quickly and reliably. The price was very reasonable. As a bonus, each microSD card comes with an SD adapter. However, write performance on these cards is only 4Mbps, which is less than half the speed of the claimed Class 10 devices. This was verified on a Windows 8 desktop and Ubuntu Linux laptop using the microSD adapter that came with the cards tested as well as the microSD adapter for USB 2.0 from SanDisk. I couldn't use the MicroSD to USB 2.0 adapter "Everything except Stromboli" that is included in the photo because of poor workmanship. The metal shell over the USB connector was loose and didn't crimp into the device at all. Good thing I noticed this before I plugged it in, otherwise it could get stuck in my laptop's port, which could short out the port and the board connected to it, which could be fatal to the laptop.
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