h2testw is the standard test for a fake ssd. not heard of any fake being the right volume but just poor quality memory, could happen i suppose but i doubt fakers have the manufacturing capacity to make memory do they?
Its not THE standard test. All it can do is ascertain if a device can store the data it claims it should be able to for a couple of minutes. Virtually all fake flash now is the correct size (as cheap flash is so cheap), if you're buying fake memory that's only 8Gb now, its really old.
no it shows read and write speeds as well as capacity. all the fakes i have found are fake capacity - which is the biggest problem as it means you will definitely lose data when trying to fill up a card.
Think your missing the point, the fake cards you seem to have come across are, updated, modified, upgraded, etc, what ever the current named cards eBay seems to allow fakers to dream up and get away with, ie, you buy a 64gb SD Card only to find it fails after a time when loaded with data, mainly due to it being a true 8gb card for example that is tricked formatted to say its more than 8gb.
That's in its very terms a very basic fake card, which eBay seems to allow, these can be H2 tested to tell you this, or a simple Windows format, then a reformat in fat16, 32, NTFS, or eFat will tell you other wise what the card should be formatted to the correct capacity.
As said, in an earlier post, that's the idiot buyer problem, the real problem is buying fake cards as in counterfeit cards, these are cards that look and are manufactured to the real deal, with the correct capacity and artwork details, your H2 test probably wont detect these cards as fake, and in all fairness the cards may work as described, but compared to high end manufacturing technology of the original manufactures are either, misfits, poor copies, rejected material etc.
As to your question of can they manufacture fake cards, yes they can, most of it comes out of Asia anyway, be it a proper iPhone 6 to a Nakamoki 2000 fake, interestingly go back 15 years, when fake DVD's where all the rage, some good some poor, some excellent, after a Global clampdown on Film Rights, turned out a lot of the good fake copies were actually coming out of the same factory as the originals, be it, back door, doggy hand shaking, lost or rejected material.