I was looking for the SD card reader and microSD solid to have always on me on a trip, or to retrieve files. Metal construction including outside the USB3.0 connector inspires confidence. Tested with SD cards Sandisk 80MB / s and Kingston microSD 90R / 80W, this player takes full advantage of the performance of fast cards. Cele does not bother me but the reader is relatively wide (may encroach on neighboring USB ports). I recommend.