USB Card Reader, UNITEK 3-Slot USB 3.0 Compact Card Reader, Read 3 Cards Simultaneously, Aluminum SD Micro SD CF Card Adapter

Worked like it was advertised. Ease of transferring pictures to pc.

The card reader is compact and works as expected. Transfer is fast, but the speed obviously also depends on the card. My only complaint would be that CF cards need to be inserted face down, see pictures. SD and microSD cards go in face up. This is a bit weird and I only found out because the CF card initially did not fit. When I felt some resistance, I turned it over and then it fit. This should be mentioned in the instructions as it could cause damage to the card reader and/or the memory card if someone pushes it in the wrong way.

Only thing that threw me for awhile was that the larger memory card goes in what is usually considered upside down.

A little background first...For my workflow, I shoot with a Nikon Z6. I was using Sony XQD cards and was having issues with the boot record becoming corrupted when using the Adobe Bridge Photo Downloader. So, I decided to try Sandisk Extreme Pro CFExpress cards (which are way faaster).So I bought this reader and have it connected to my PC via the front USB-C port. The copy speed is super fast. What's the issue? Do not leave your card in the reader! Both will get very (no, extremely) hot even when there is no activity going on. Pop out the card and all is well. No heat at all. Now, this overheating does not happen every time, but enough to know that I should never leave the card in the reader.Secondly, Windows 10 File Explorer recognizes the card. So does Lightroom and Bridge, etc. But, for some odd reason, the Adobe Bridge Photo Downloader will not detect the device, even though everything else sees it. I have been investigating this issue but have no resolution yet.In all, the reader works fast and works well. You may need to do some workarounds depending on your workflow.

What's not to like about this product? Plug and play right out of the box, and if you happen to have a bunch of various CF, Micro SD and SD cards lying around wondering if you need or have something that needs to be offloaded to another storage device, this could be the item for you to do that! The USB 3.0 connection is incredibly convenient and allows for speedy transfers when you really need them. Construction looks and feels solid. The cord is thick and feels pretty resilient, all in all, a purchase I'm pretty happy I got around to making. While this might not be something you might not need on a regular basis, as far as miniature data storage solutions go, this is a must buy for when you really need it. I bought it mostly because I did not want to install an onboard media reader that fits on the front optical drive bays like you might see on certain models of prefabricated HP/Dell/Gateway computers and this fit the bill perfectly. No need for external power sources as it's powered straight from the USB connection itself. Awesome.The product description on Amazon mentions it reads 2 cards while the box here, as I'm looking at it right now, mentions it can read 3 cards simultaneously, so I dunno what's up with that. I haven't tested it personally with all three sources being used, so I can't confirm that for certain, but it is a bit misleading if that is in fact true.

Bought this to read the CF Express card with the photos from my Canon R5. It works perfectly. The card fits snugly in the slot and "clicks" in. One of the two supplied cable connects the reader to my MacBook and the card shows up in Finder immediately. The transfer speed is really fast. The reader does exactly what it should do. It is also solid and robust.

It seems like every camera body I purchase has its own different memory cards, so for my new Canon R3, it uses the CFexpress B card (plus the SD card).I found this card reader is easy to use, very robust and reliable and reads the images from the card really quickly. Last night I was able to copy 92 GB of data from the card to the computer in just a minute or two.I like how the card clicks into place vs. just sliding in. I'm a big fan of this card reader and it will be traveling with me on my photo adventures.

Yikes, what a mess. Product arrived on time (yay) but when I opened the box, the item looked as though it had been used previously. This had me a little concerned.Hesitantly, I decided to import my photos. It took a long time (certainly not as speedy as they had indicated).Looked at my import and it had only imported 77 photos (this is with a brand new Lexar SDcard).Tried it again and it was super fast (like too fast for 1200 photos at 50mb each). I started to edit a couple of photos and then ejected the card reader. Suddenly, none of my photos were in Lightroom. Weird.Checked my settings and looked at smart previews, nothing out of the ordinary compared to how I usually import and eject the device.Did this three times and each time I ejected the card reader, “no image found” was the reply.The device was overheating and this was another red flag.Thought I’d bypass LR and instead upload files to my external hard drive. At this point my new Apple Mac Studio desktop was starting to give me warning signs that something was wrong.Hence, I’ve ejected the device and will be returning for a Lexar brand card reader.I will never buy anything from Ocean Tech again.