Bought for under $15... nothing bad to say here. Great brand product for awesome price. Worked great in my IDE to CF adapter card.

I loaded a number of files on the flash drive and the first time that I tried to review the files, I could not access the drive, then could not even erase and reformat the drive. Costco's return policy has been great.

costco return policy

flash drive failed

not what I thought it was going to be but for the price not bad. works great but don't use it much anymore cause I really only use the 64GB microusb and that is like bare because I have a 2tb naz with a VPN sooo yeah. good product.

Wonderful deal in great price! Data transfer rate is very high. Indeed, a great product by Sandisk!

Sandisk Ultra Dual pendrive is a 'must have' item for smart media storage management ....Unique product with smart concept...!!

Mounting/Visibility – Even though my phone (DROID Maxx) has OTG and I installed the Sandisk app BUT for some reason the drive would not mount it seemed. This is likely a ROM problem so I did not list it in CONS.

Portability – This is a very compact drive; It's not the most compact I've ever seen but it is small enough that it is as near as makes no difference; Versatility - Having both Micro and USB Standard-A ports makes this a very handy drive; Build - It is well built, not flimsy at all.

Compatibility – not all mobile devices have OTG capability Covers – The sliding covers do not cover the tips the they are easily pushed back making them not very protective Port Length – The ports are minimum length so if you have a case on your phone there is a good chance you will have to take it...

Picked this up a while ago. It's been with me ever since. This has got to be the best USB stick I've ever had, it won't win any awards for transfer speeds, but it won't let you down either. I mainly use this for storing films & tv series which I watch at work, either on the PC or on my phone.

I used it for more than 4 months and found no issue with write speed and reading speed. it works charmly and i love it.
Finally worth for the cost i spent.

Easy To Set Up; Easy To Use; Fast; High Capacity; Portable; Reliable

SanDisk's latest USB flash drive includes OTG capabilities for Android. Read on as we take a close look at the Ultra Dual Drive.

Why would you need a compact flash card? Most devices as far as I am aware tend to use SD cards are micro SD cards for their memory needs, and the Compact Flash Card may seem slightly large and cumbersome in comparison making you wonder why on earth would you use that?

Fast; decent memory; durable

Faster models available