Decrescent 30 Pin 5 in 1 USB Host OTG & Card Reader Connection Kit for Samsung Galaxy Tab 7 Plus, 7.7, 8.9, 10.1, 10.1N & Tab 2 7.0, 10.1 Tablets (See description for full compatibility list)
the only issue I have is that the usb is limited to what flash drives it accepts.  maxes out at 8 gig.  Something to do with high powered usb flash drive is the error I receive.<br />also, I was hoping that this adapter might also charge my tablet but haven't been able to make that work yet.<br />the cards it does read, it works well.