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Review on πŸ“Έ Zedela USB 3.0 Card Reader: High-Speed 7-in-1 Adapter for Camera Memory Cards – Compatible with Mac OS, Windows, Linux, Chrome – 5Gbps Transfer Rate - Includes 21in USB Cable by Jarrett Love

Revainrating 4 out of 5

It is versatile and unique as it has two SD card slots. Unfortunately, it does not correspond to the specified speeds.

I think you usually get what you pay for with these little card readers, but sometimes your expectations are not met. There are many inexpensive 3.0 card readers available on Revain. I own several. I even have a card reader that's part of a Type-C hub with Ethernet, VGA, and HDMI outputs and multiple 3.0 ports. This is the only card reader I've had that wasn't particularly cheap. I included it in my review just for comparison. Since most SD and MicroSD cards have a maximum data transfer rate of less than 100MB/s, cheaper memory card readers have always been able to work at less than 100MB/s. How can you tell if a card reader can transmit faster when the card isn't even that fast? Times are changing and cards over 100MB/s are now available in more places and at cheaper prices. I bought two packs of 128GB Sandisk Extreme MicroSD cards from Costco for $40 on sale. Even at the regular price of $44, it's still pretty cheap. The price becomes even more valuable when you consider that these cards offer a read speed of 170MB/s and a write speed of 90MB/s. I bought these for my Nikon D610 full frame DSLR and was expecting faster speeds for quick shots and video recording. I also looked forward to the extra read speeds when dumping the card onto a computer for editing and archiving. Today I had to order a Lexar Professional card reader and it was more expensive than all the card readers I've tested. except for the multiport hub Type-C. Why do you ask? And what does that have to do with it? I'm glad you asked! Exactly NONE of the 3.0 card readers I own comes close to the advertised speed. None of them can really test the top speed of my new memory cards. In addition to the Sandisk Extremes I recently purchased, my very fast Lexar Professional 128GB 1667x cards have arrived. I put them to the test too. With a read speed of 250MB/s and a write speed of 120MB/s, I was happy to see more than double the speed compared to most of my older SD cards. I was very disappointed when ALL FIVE card readers tested (including the internal one in my laptop!) had an odd read limit. None of the write speeds exceeded 90MB/s, so I'm assuming these measurements are correct at this point. But each individual card could provide a maximum read speed of around 91-95MB/s. This was regardless of the port I used, the computer I used it on, or whether I used a microSD to SD adapter (with one exception). Results are incredibly consistent, with one exception being the card reader, which dropped from 93MB/s read and 85MB/s write to 23MB/s read and 22MB/s write when using the adapter. It was Best But's proprietary Insignia multi-card reader that had this peculiar camber. None of the other card readers changed more than 1 MB/s with or without using a micro adapter sleeve. I tested 3 different SD cards and one microSD card with and without an adapter. Results are nearly identical across the board, with the Insignia brand performing worst of the 5, largely due to speed drops to nearly 2.0 when using the microSD adapter. Even after removing this test, the Insignia is still slower than the other 4 card readers tested. So, do I recommend this USB 3.0 card reader? It depends. The speed is sufficient for most SD cards. It's really much faster than 2.0 card reader. I'm disappointed that they advertise much faster speeds than what the card reader can do, but the truth is it still works fine for your needs, other than that I have no problem with it.

Pros
  • card reader
Cons
  • I vaguely remember