On the PC, I was desperate to several previously internal solutions for USB Multi-card reader - either fit the wiring not the motherboard or the dimension was not clean enough or it was still a cascaded USB connection with in it of everything bothered .. , This blue translucent small box has everything must have an ordinary card reader. No frills, no annoying external power supply ... just card slots for anything and everything, a USB cable that fits exactly in one direction and an excellent compatibility with memory cards and computer systems. I use the part without any problem between a Linux and a Windows PC, as well as my two main computers (Apple iBook and PowerMac) and of course my computer in the office - hardware detection works every time absolutely straight away, the memory card detection is done as quickly and then can the data transfer just go. Schön: Even behind a battery of three USB hubs's even no problems with the control - unfortunately that can not claim all of my USB devices themselves. If the thing's with need, even fits in your shirt pocket (if a cable does not bother) - Otherwise, of course convinced of the good price, the successful design and super compact outer dimensions. Prima supplement also for exchanging data with PDAs (SD / MMC-based).