QUMOX Dual Port Micro SD/SDXC TF to Compact Flash CF Type I

While bought this model by mistake, as I wanted the single SD adapter, I figured if test it out. 🤗 It worked as it should have. Insert 2 microSD & insert the adapter into the camera, simple right...YUP it worked just fine 😁 I tried 2 2gb and even a 2gb & 4gb at the same time, YUP, it read them just fine showing over 1000 pictures could be taken😎. Snapped a few shots pulled out the microSD, pushed in the PC and what do you know ... pictures. I can ONLY assume the adapter will fill 1 side card then the next. 🤷 as I didn't test that far? While yes you can get a ##gb compact flash card for about the same price. Having a standard, newer compatability is way netter! Remember FORMAT the cards AFTER you insert them... using your camera!!.

Doesn't work. Won't format. With 1 card in. Or with both. Tried multiple cards.

For what it's worth. i inserted a sdhc sandisk 64gb into the adapter and stuck it in my canon 5d mark II. It formatted the card with no problem and i took about 40 pictures. then i uploaded the pictures with no problem to my pc with about the same speed, my sd cards do on my other cameras, about 25 seconds for 40 pictures of 21m bites. i am very satisfied with the results and if it keeps going this way it is a winner.

I just received a microSD to CF adapter and ran some test on it. The card works as advertised and I was very impressed. There are a number of bad reviews but the question is are they for the microSD or the regular SD adapter. You also have to understand something about file systems and computers besides just cameras. The card worked excellent with one microSD card in the first slot, it also worked with two microSD cards but they had to be the exact same type of card you cannot mix memory sizes. If you use two cards it stripes across those cards so you cannot take one out and use it in a computer by itself you have to use them inside the adapter. That is not the same if you only use one card you can then use that inside of a computer without the adapter. I haven’t tested speed yet but as far as total size of cards my canon 7D uses fat32 to format so the total combination of the cards cannot exceed 132 GB and again they should be the same size and type of cards. Mine was made in Taiwan don’t know if that makes a difference if they come from different places but I’m happy so good luck. UPDATE: Returned card. Apparently after you format two cards in micro adapter at once, the cards become unrecognizable in any other device. Had to return cards to adapter one at a time and format in camera and then in PC for them to work again.

This did not work with my camera or computer with one card installed. Camera would attempt to format card and fail at 99%. I tried with a Canon 5d Mk III and MK IV. First time little card installed in slot on CF adapter you could tell there was a spring mechanism to assist with ejection, but it would not release when pushed in further like most spring assisted ejection slots.

Doesn't recognize 2 micro SD cards, only recognizes one card on either side.

Does not work for 4th Gen iPod. Attempted variety of micro SD cards, formatting using different devices, but does not want to work with iPod and iTunes. Other CF cards work fine. Otherwise it works for DSLR cameras just fine.

The first one was defective. The mini SD cards would not insert into either slots. Something inside the slot stopped the mini SD card from inserting all the way. The replacement one is fine. Works great for my Nikon D300 camera.

I bought this version as well as the SD version. Both work great and will save you more than a few bucks. No brainer.

Again another great purchase. This item read and write speeds were decent for the hardware it was purchased for. So all In all great item

Out of the bis it doesn't work, tried it in three different cameras and sealed different sizes micronSD cards even one at a time all the combinations and the device is showing me CF CARD ERROR 😤😓🤬....NOT WORTHIT EVEN 5cents. Now because I don't have a printer to print the return papers to get a refund I'm gonna trash it and call it my loss their gain 👍 BRAVO

Excellent quality and value very versatile

Not working at all