Not very good.
This item fell apart in my hand as soon as I got it out of the bag. Back together again (which was easy enough) but was a tight fit with both memory cards I put in, then a tight fit in the usb slot... When my laptop finally registered that there was something there it still couodnt read the memory card. Might only be 3.99 but was a waste of pennies and time waiting for it to turn up, I now have ordered a different product and have to wait yet again for the delivery. Not impressed.