An important factor when purchasing additional storage for your mobile device is weatherproofing while maintaining performance. This product does both well. I've been using this with my Samsung Galaxy SG4 mobile device for a few months and it's been working flawlessly since it was deployed. For users of non-cellular devices, simple removal and insertion into an appropriate device should be considered. I can easily insert this memory into my Samsung Galaxy SG4, however, it is not easy to remove this device from the physical slot. I have used 3 other memory cards with my Samsung and they all worked fine when inserted and removed. This device is the only one with this problem. Despite this issue, I find the functionality of the product to be solid and meets and/or exceeds my expectations, particularly in terms of video file transfer times. A good product.
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