2nd attempt at getting this review approved, don't know what I did wrong before but I have attempted an edit.

Headline says most of it.

---> Notes: Well there was a rant here about a requested change to the advertising of the product features and I had a picture of the packaging but apparently those are no-no's for Amazon reviews these days so since I am only allowed to review the product, here's me stating a fact about it: THIS READER ONLY READS ONE CARD AT A TIME.

DECISION:
Since I've already torn the packaging to open it, and it was such a dirt cheap add-on item I will not be returning it but I will be stashing this as a backup reader in my camera bag instead of using it as my primary card reader. I will be buying a [insert different product here] for about $2 more, like I should have done in the first place, because it can read both card slots simultaneously and I am a fan of [insert different brand here]. Better?

Gripes:
- The micro sd slot sounds terrible when inserting card, like it's full of sand and metal shavings. Still works, but sketches me out and makes me think it's scratching the contacts. Would much prefer a smooth spring-loaded interface like how most cameras and phones have.
- Missing double card reading functionality makes this dead in the water as my primary reader. If you already have a card inserted and you stick a 2nd in, NEITHER shows up, so that's somehow worse than only reading 1 at a time. I was intending to use this to read my 2 dash cam cards at the same time to watch the front and rear footage simultaneously, but obviously that isn't happening.

Good:
- For $6 and some change it works and is USB-3.0-fast (~100 MB/s copy speeds) with one card at a time.
- I like that it has a cap but based on the history of USB devices with removable caps it is very likely to get lost.

Meh:
- It's a little narrower than some similar ones, which I like, but it's still too wide to be used in a side-by-side port on a laptop or USB hub so it's kind of a moot point.
- Cards stick out the left side of the reader with the label facing up, which may interfere more or less with other things you have plugged in depending on your hardware, so check before you buy.

The Transcend card reader preforms as advertised while using a USB 3 connection. SD cards with higher write speeds will get the best results. However, older cards can see some upload times reduced. Also, if uploading to a SSD hard drive the Transcend will hit and even exceed the maximum upload speeds from the SD cards.

WARNING: The Transcend card reader gets noticeably warm/hot when large amounts of data are transferred (12+ GB). This is not a fire hazard but is startling if not expected. This happens with all three Transcend USB3.0 card readers I own. If the card reader gets hot, finish the transfer then disconnect the card reader from the computer, also remove the SD card from the reader. Allow a few minutes to cool off before continued use.

There were no issues with the Transcend USB 3.0 card reader using Windows 10.

The -1 star is for the fact the Transcend USB 3.0 card reader is wider than necessary and will block the use of other USB ports on some small to medium sized laptop.

There might be faster card readers on the market, but I doubt you'll find one at this price point.

Will buy again.

I don't have a card reader on my PC, and this was a much less expensive way to be able to read SD cards from my Cannon t3i. It's so much more convenient than having to plug the camera into the PC.

It's inexpensive, and easy to use. Since most people have only a need for SD and micro SD, this will be jsut fine. If you have a need for other formats (Compact Flash, Sony Memstick, etc) then get one that has those features too. Otherwise, this does exactly what it needs to do. I didn't do any kind of speed test or anything to determine if it actually uses USB3 speeds, but I have transferred over a gig of photos through it and it was pretty fast.

I took off one star becasue of how the card mounts from the side. It sticks out kind or far, and as a result makes it so that I can only plug it into certain ports on my PC. I have to unplug something else to plug this in. Not too big a deal though, as all I am unplugging is the cable for my phone, but it's enough to take off 1 star.

The Transcend RDF5K memory card reader is available in black or white and supports SDHC UHS-I, SDXC UHS-I, UDMA6/UDMA7 CF and MSXC memory card formats.
Transcend RDF8 Memory Card Features:

Super-Speed USB 3.0 interface (also compatible with USB 2.0)
Supports SDHC UHS-I, SDXC UHS-I, UDMA6/UDMA7 CF and MSXC cards
Transfer high-resolution images and video recordings to your computer faster and more efficiently
Utilize the full speed potential of your memory cards
USB powered (no external power or battery needed)
Blue LED indicator light for card insertion & data transfer activity
Supports SD & CF built-in security functions

The body of the Transcend RDF8 USB 3.0 card reader is made from plastic and the top of the device has a glossy finish. This does show finger prints, but the easily wipe off with a cloth. The front of the reader features the CompactFlash, microSD and SD memory card slots. Being able to read a microSD card without an adapter is nice! The reader supports UHS-I SD cards and UDMA 7 CF cards.

The backside of the Transcend RD8F features the MS PRO/XC/MS DUO slot along with the SuperSpeed USB 3.0 data and power header.

The bottom of the Transcend RDF5K shows the model number, serial number, date of manufacture and the usual conformity markings that are required for various regions.

To get the Transcend RDF5k USB 3.0 memory card reader installed on your PC you just need to hook up the USB 3.0 cable between your PC and the reader and you should be good to go. The reader is backwards compatible with USB 2.0 ports, but you'll want to utilize a USB 3.0 port to get the most performance possible!

I bought this for a "just in case" scenario. Normally I just plug my camera in via USB to get my media, but sometimes things happen and that's now very effective or fast.

I love that this has the ability to accept SD cards or Micro SD cards and that it is USB 3.0 compatible. Overall, I would say that it has saved me quite a bit of time when my computer, camera, or cell phone was being difficult. I was able to pop the card out and plug it in to my computer in a matter of just a few seconds and get on with my life.

I would have given 5 stars, but there were a couple of things I thought could have been improved:

1. The card reader has a cap to go over the USB plug, but there's nothing to keep the cap from getting lost. For example, just adding a small lanyard kind of device from the cap to the reader would be nice.

2. There's no lanyard attachment at all. This might be a simple complaint, but it would be nice to be able to attach it to something inside your bag so that it doesn't fall out and get lost.

Overall, I would suggest this to anyone looking for a USB 3.0 SD or Micro SD card reader.