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M**I
Fast transfers
This worked out great since I was transferring large 4K videos from my SD card and it went from about 80-90 Mbps to as high as 300 Mbps. The average speed to transfer is about 275 Mbps so it transfers like 3 - 4 times faster. Instead of minutes it usually gets in done in less than a minute. Good product, you wont be disappointed.
J**S
Most excellent
What I don't like: Needing to use a USB-C adapter and I would have preferred one with a few inches of cable (I often use my laptop, literally, on my lap, and having a rigid accessory plugged in is asking for trouble.But... I won't ding it any stars for these things, because it is only my subjective opinion and because if I truly wanted those features, I would have not bought this one, but the price was right.All I really care about is: does it read my SONY TOUGH SD Cards - YES, and does it read/write them quickly? YES.According to BlackMagic's Disk Speed Test on my 2017 MacBook Pro, it reads raw files off the card at about 260 MB/s and writes at about 160 MB/s... many times faster than a standard SD card and USB reader. I don't know why I waited this long to buy a proper reader for my fast cards... I guess I assumed they cost more. If you do a lot of photography, or use SD cards for data transfer, I strongly recommend the Sony Tough UHS-II SD cards and a UHS-II-compatible reader like this one!
J**
Great Speed , should of gotten one of these sooner.
I only use UHS-II speed cards on all my cameras and have been using a UHS-I SD Card reader.I've upgraded to this high reading speed reader.Old reader averaged around 89 MB/s - Now with this new reader, I'm at 230 MB/s average.A lot less time waiting for that transfer.Need to buy another for when I'm traveling.Part 2 of review, I've gone back into my review and edited it. I'm seeing images of card readers above that don't match the item that in on the Amazon page. My image is of the card reader I purchased.GIKERSY UHS II SD Card Reader
R**C
So Far so good
So far they do exactly what they are supposed to. I hate having to put my micro SD chips into the larger one to fit into the ports to download. With this I can just plug my micro sd right in and download my GoPro videos. And you get two for as much as you would pay for one from other sellers.
T**.
Mac with Catalina, Sony A7R4
Bought some Lexar UHS II cards for my Sony A7R4. Plugged in the cards to the Mac (latest update); Raw images would not download; and JPEG was spotty at best. The computer is up to date. Apple support not much help; but I'm not the 1st one to run into this problem. This reader solved the problem; able to download the pics to Photos ion Mac; and get images into Lightroom. Of course; my SD slot on the MAC is useless (unless I revert to using pre UHS II cards).
P**S
Scratches my SD cards.
This card definitely runs at UHS-II speeds. I haven't done any scientific testing, but it can transfer the fastest UHS-I speeds of 90 mb/s and runs my Sony TOUGH card (UHS-II) at much much faster. The biggest issue I have with this is that it scratched my Sandisk cards, as seen in the photo. It is beginning to scratch into my TOUGH card as well, but not as bad as it has on my other cards. I've used these cards for years, taking them in and out of cameras and slots, but the first time I put them in this reader, it scratched the front of the label. It functions perfectly fine, but if you value the aesthetic of pristine cards, go for something with better quality. I feel this sort of damage warrants 2 stars off, otherwise it's a great value for someone who doesn't need the utmost in performance.
P**R
I like it a lot.
I've only used the UHS II cards and I'm happy with the speed of transfer on both the read and write. I don't know how to provide test photos but it is a lot faster than my old SanDisk UHS I reader. Great Value.
M**.
Great speeds, reliable.
This thing works reliably, and I've never felt that this reader was the limiting factor on a card's read speed. Who knows what the max is, but I use cards that read at 200MB/s and they get almost their rated speed, and I chalk the difference up to the card and not the reader. I've had it about 2 years now and going strong!
Trustpilot
4 days ago
1 day ago