The amount of USB 3.0 products in the market has been increased rapidly due to its greater speed; ~10x faster than USB 2.0 in theoretically. However most of the USB 3.0 products are only designed for USB flash drives not for other devices like card reader.
+ USB 3.0 technology; + Multiple flash memory cards are supported; + SDXC is supported; + Awesome Kingston logo to show its activities; + Slim & light weight
- Could be cheaper