I'm giving the product 1 star because the delivered product differs from the advertised product. I have an old Sony H1 camera which only supports memory stick. I was looking for a card reader with MS/MS Duo compatibility and the seller had posted pictures of card reader package with compact flash/Memory Stick (MS) printed. However the supplied card reader did not have a memory stick slot nor it was printed on the package.The one advertised had 4 slots, 3 on the front and 1 at the back. The one I received has only 3 slots on the front and no slot at the back except for the USB 3 interface. When I checked the reviews here,I found that similar type card reader with MS compatibility was shipped earlier in 2017 but not anymore. Those readers had MS Pro and MS Duo printed at the back side of the card reader next to the slot. Hence the 1 star for wrongly advertised product. Otherwise the product is of good quality. I returned the product And I'm ready to purchase the item if the seller can send me the card reader of 4 slots with MS compatibility. Hope this helps.