TranscendUSB 3.1 2-in-1 Card Reader, for SDHC / SDXC / micro SDHC / micro SDXC / micro SD, UHS-I Cards, Black - TS-RDF5K

Made in Taiwan. It is a reliable memory card reader. No issues with connecting or reading memory cards.

Fantastic, it's small and works great and very inexpensive. Highly recommend.

Great, cheap card reader! When I built my mid-high end machine in August, I was planning on getting a card reader for one of the slots in the front, just under the Blu-Ray drive I decided to put in... However, it would have put me just above my budget, and internal cables may have been problematic...So, with the several USB 3.0 ports I had available, I figured I'd find a USB card reader. I wasn't expecting a 3.0 device to be so cheap, but I guess I was wrong! Speeds are fast. I want to say... 50-60 MBps. That's with the Sandisk Class 10 card I have in my point and shoot camera... I'm just ballparking it. But it's running at actual USB 3.0 speeds, and not the 10-20 MBps I would normally get when transferring something via USB 2.0, especially when using a USB cable to transfer directly from the camera. But that in itself is another plus. You don't waste battery doing transfers from your card to your computer when using a card reader.So what's bad about it? Not much at all. However, some things to mention... The card doesn't spring/lock into place. It's a friction fit. For someone who is going to be transferring every day, the fit may become really loose on the part of both the card, and this card reader... However, I usually do transfers a couple times a month, sometimes more, depending on what I've just used my cameras for. And that is my primary use. Transferring my videos and pictures from my cameras. So for a hardcore photographer, this may not be the best option... However, for someone who is simply looking for an easy way to transfer their casual pics and videos to their computer, this may very well be the solution you're looking for...Another thing to know... After transferring a ton of files, this thing will get fairly hot. It's not something I would use to transfer files, and then use it to watch the videos directly from the card. When doing that, it gets hotter than I'm comfortable with. I'm sure it's not even a concern, but it is something worth noting. Don't play a bunch of files off of it, and do large transfers. I personally don't trust the heat.Bottom line... If you're a moderate SD card user (or micro SD as well), and want something cheap, fast, and compact, then this may very well be what you're looking for! It MAY have potential downsides, but I haven't run into any problems. If I do, I will try to remember to report back. But for the last several months, it's been a great little accessory that replaces a whole card reader drive-thing to take up a slot in my computer. Not to mention, it does it's job and it's cheaper. Definitely give it a try!P.S., I lost the cap. It was hard to get off anyway, so I'm sure I just threw it somewhere... No worries, though!

this is a replacement for the first one at Xmas that only some of the outlets worked. So far, ok with the replacement.

I have been using several USB 2.0 card readers in the past, including the Transcend M5 Multi-Card Reader and Sandisk Mobilemate SD Plus Memory Card Reader. With memory cards getting faster over the years, I started to get the feeling that my old card readers are limiting the Read/Write speed of my newer memory cards. That's why I purchased this Transcend Information USB 3.0 Card Reader (TS-RDF5K) just to try it out, even through all my computers only have USB 2.0 ports.Upon arrival of the RDF5, I benchmarked over one dozen of my SDHC and microSDHC memory cards, with speed rating from class-4 to class-10 and UHS-1. The program I used is called "CrystalDiskMark v3.01 x64". It reports, among other things, sequential READ and WRITE speed of memory cards. To my surprise, several of my fastest cards showed about 50% improvement in Read/Write speed compared to when using the old M5 card reader.As an example: for the HP CG790A-AZ 32 GB Flash Memory Card Class 10 SDHC I was previously getting 19.6MB/s in Write and 20.1MB/s in Read. But when used with the RDF5, its throughput jumped 50% to 29.7 and 34.8MB/s, respectively. The Transcend 32 GB Class 10 UHS Flash Memory Card TS32GSDHC10U1E also shows nearly identical improvement.The above proves that using old card reader was the bottleneck for my fastest cards. On the other hand, improvements for my slower cards were less noticeable, typically around 5% or less. That include Kingston class-4 SD10G2/16GB, Transcend Class 6 TS16GSDHC6E, etc. See the summary of benchmark results I uploaded to 'Customer Images' section for details.The only negative about this RDF5 card reader is that: it does not allow simultaneous usage of both SDHC and microSDHC slots. That is, you can only insert one card at a time, but never both.Conclusion:I am very happy with the dramatic improvement I can achieve with this card reader, even when it is connected to an USB 2.0 port. Once I upgrade to a new computer with USB 3.0 ports, I expect the benchmark results to be even better - at least for my fastest cards. In the mean time, I consider this card reader the cheapest computer upgrade I can recommend.[Update on Dec 26, 2013]I finally have a computer with USB 3.0 port, so I re-tested ~10 memory cards to see the difference.- For any card marketed as 'UHS-1', I observed huge improvements in both Read and Write speeds.- For any card marketed as 'class 10' but not UHS, I may see some increase in Read, but very little difference in Wrire.Bottom Line: If you have an UHS-1 card, make sure to use the RDF5 card reader in conjunction with USB 3.0 port, in order to get the full benefit.