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Aside from buying assorted electronic parts here on eBay, I do what I can to educate buyers about the Fake Capacity Flash scam. If you are considering buying a USB flash drive or memory card, I suggest that you google eBay fake flash to learn more.
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Reviews (3)
01 May, 2016
FACT: *Nobody* makes genuine-capacity 2TB USB flash drives
There are many excellent deals on eBay, but this is not one of them. What you have here is a hacked, fake-capacity flash drive that will appear to work at first, but will eventually destroy your data.
Don't be fooled by the slick design and convincing packaging. This and many other cheap apparently high capacity flash drives are really low capacity 4GB or 8GB drives that have been hacked (controller chip settings altered) by dishonest Chinese suppliers so that they show a false inflated capacity. That is why their price is so low. Such drives are then redistributed by a few clueless resellers and by many other fully-aware resellers who are out to make a quick profit.
These drives will show their false capacity in Windows properties, but will quietly lose or corrupt your valuable data once their true capacity is exceeded. They will seem to work at first and files will look okay in their folders, but you will eventually find some or all of your data corrupt when played, viewed, or otherwise read back. Your valuable data will be irretrievably lost.
Currently the top genuine capacity flash drive is the 1TB Kingston HyperX Predator drive. To achieve that capacity, Kingston mounts 8 memory chips, a controller chip and other necessary components on three interconnected circuit cards packed into a necessarily bulky package. (Search for "DTHXP30 review" to see photos of the internals.) Those drives cost several hundred dollars, and the lion's share of this cost is the memory chips themselves. The circuit card, case, assembly costs, packaging, and distribution only add a few dollars.
The Chinese are great at producing a wide range of interesting generic and novelty designs, but they don't have a magic supply of cheap memory chips. They also do not have the ability to make a 2TB drive using a single chip design as is contained in this drive. The technology is not there yet.
If you do buy a low-priced drive, the first thing you should do is test the capacity using a utility called h2testw. This will fill the drive with data and then verify that it can be read back intact. The write phase usually completes without error. It is the verify phase that exposes the fake capacity. Testing the first 35GB is usually sufficient. For reasons stated above, you cannot trust the capacity displayed in Windows properties.
You can also test by filling the drive up to at least 35GB with videos or other large media files and then *most importantly* check to see if they can be played back. If the capacity is faked, the first few will play, but past some point, the rest will be corrupt.
Do not trust the capacity or space remaining shown in the properties display - that is exactly what is faked.
Search for "fake capacity flash" using your favorite search engine for more information.
06 May, 2016
Unsuitable for it's stated purpose
The package contained the glasses frame, four pairs of swapable lenses, and a head strap.
Physically, the frame fits comfortably around my head and the natural springiness of the plastic holds it snugly in place. The nose pads are wide and also comfortable. The head strap can be attached after removing the arms at points behind the hinges. Both the arms and strap snap int place. The strap is adjustable and is of reasonable good quality.
The lens assemblies can be rotated in and out through a couple of working positions or can be rotated up completely out of the way. They can also be slid laterally by a few millimeters to accommodate different pupillary distances. Each lens assembly has an LED light, which while not very bright, can illuminate close-up objects.
However, the focus is *not* adjustable and is fixed at only a few centimeters in front of each lens. There is no way for both lenses to focus on the same object. There is no in/out parallax adjustment that could even attempt to align the lenses so that they focus on the same point. This makes the product unsuitable for the advertised intended purpose. It does *not* provide "binocular near vision" as stated in the listing.
As a monocular magnifier (close one eye when used) it does have some very limited use, but only when viewing objects immediately in front of the lens. I bought this thinking it would be useful for fine electronics work (SMD soldering) as an alternative to my third-hand magnifier. However the limited working distance is such that there is little room to work and my face would be dangerously close to the soldering tools (iron or air gun).
It may still have use as an interesting novelty item, but does not have much more use than the hand-held plastic loupe that I bought a while back for $1.50.
19 Oct, 2015
*NOBODY* currently makes 256GB micro-SD cards. READ CAREFULLY BEFORE BUYING.
4 of 4 found this helpful If you are looking for a card that will corrupt and destroy your data, this is the one.
You risk losing some or all of your valuable data If you buy this card.
Beware of fake capacity SD memory cards. This and many other cheap, apparently-high-capacity SD memory cards are often low capacity 8GB or 16GB cards that have been hacked (controller chip settings altered) by dishonest Chinese suppliers so that they show a false inflated capacity. That is why their price is so low. These cards are then redistributed by many clueless resellers and by many other fully-aware resellers who are out to make a quick profit.
Such cards will show their false capacity both in your phone and in Windows properties, and they will even work normally under low usage. However, once their true (low) capacity is exceeded, they will quietly lose or corrupt your valuable data. Files will look okay in their folders, but will be corrupt when viewed, played, or otherwise read back. Your photos, videos, music, contact list, and other data will be irretrievably lost.
Be especially wary of cards with a stated capacity of 64GB or above marked as "SDHC" (not "SDXC"). The SD card association controls and licenses the SD card standards and they define "SDHC" up to a maximum capacity of 32GB. For larger capacity cards, only the "SDXC" standard is valid.
*Nobody* currently manufactures 256GB micro-SD cards. The technology is simply not there yet to pack that much memory onto a single chip. As of Q4 2015, the top capacity for micro SD is generally 128GB. (The one exception is a very expensive 200GB micro SD card recently introduced by SanDisk.) Good cards are out there, but anything 64GB and up will conform to the SDXC standard and will be clearly marked as such. Expect to pay roughly $25 and up for 64GB (as of Q4 2015) and at least twice that for 128GB cards. The 256GB cards (full sized SD cards only) run over $100.
If you do buy a low-priced card, the first thing you should do is test the capacity using a utility called h2testw. This will fill the card with data and then verify that it can be read back intact. The write phase usually completes without error. It is the verify phase that exposes the fake capacity. Testing the first 32GB is usually sufficient.
You can also test by filling the card up to at least 30% with videos or other large media files and then *most importantly* check to see if they can be played back. If the capacity is faked, the first few will play, but past some point, the rest will be corrupt.
Search for "fake capacity flash" using your favorite search engine for more information.