I bought "Kingston 64GB" and "SSK 32GB" USB flash drives from Aliexpress.com. Both drives were advertised as "100% real capacity". Both drives are faked capacity and Kingston is also a pirat product. Both drives had real capacity of 7GB. After some googling etc. I came to conclusion that very likely all SD cards and USB drives sold at Aliexpress are faked capacity or pirated products scams. These are also sold at Amazon etc online shops. Typical real capacity is from 1/4 to 1/16 of claimed capacity. There is absolute no reason to buy these products. At same price for what they really are you can get quality brand product with warranty and better performance cheaper from your local store.
Edit: Both drives broke soon with light usage.
Typical chinese crap.
Kingston fake USB drive
SSK fake usb drive
"Kingston 64GB" H2testw v1.4 test result:
Warning: Only 63900 of 63992 MByte tested.
The media is likely to be defective.
7.7 GByte OK (16257208 sectors)
54.6 GByte DATA LOST (114609992 sectors)
Details:0 KByte overwritten (0 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
54.6 GByte corrupted (114609992 sectors)
0 KByte aliased memory (0 sectors)
First error at offset: 0x00000001d2fff000
Expected: 0x00000001d2fff000
Found: 0x0000000000000000
H2testw version 1.3
Writing speed: 4.95 MByte/s
Reading speed: 11.4 MByte/s
H2testw v1.4
"Kingston 64GB"FAKEFLASHTEST v1.0.9 test result:
FAKEFLASHTEST v1.0.9 [SSi]
DRIVE 3 - 62.0GiB General UDisk
FFT - Quick Size Test (destructive)
H: (no label) DRIVE 3 - 62.0GiB General UDisk
BAD MEMORY from sector 42149469 (20,580.0MiB) to sector 131058269 (63,993.0Mib)
WARNING: no memory detected at one or more locations.
Test took 608 seconds.
*** FAILED ***
DEVICE HAS DUPLICATE OR BAD BLOCKS!
Recommended maximum usable partition size: 20,568.0Mib (approx. Last good Sector=42149469)
"SSK 32GB" H2testw v1.4 test result:
Warning: Only 31904 of 31995 MByte tested.
The media is likely to be defective.
7.4 GByte OK (15648344 sectors)
23.6 GByte DATA LOST (49691048 sectors)
Details:0 KByte overwritten (0 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
23.6 GByte corrupted (49691048 sectors)
0 KByte aliased memory (0 sectors)
First error at offset: 0x00000001c0f00000
Expected: 0x00000001c0f00000
Found: 0x0000000000000000
H2testw version 1.3
Writing speed: 4.84 MByte/s
Reading speed: 11.0 MByte/s
H2testw v1.4
Both drives got almost similar test results so I believe they are same chinese crap. I made a 7GB main partition in both drives and now they work properly as 7GB drives.
If I would not have done that the drives would start to write from beginning after 7GB and corrupt all existing data. They would be useless and nothing but harm. I opened dispute and send them screen captures of test results. Aliexpress refunded both because the sellers did not response to dispute in time.
Read more about faked SD cards and USB drives and how to test them
HERE
Review
All Aliexpress.com SD cards and USB drives
0/5
Aliexpress is decent store as long as keep in mind that quality control is poor to none and there is no quarantee for products. Buyer protection expires as soon as you confirm goods received or soon after delivery. Also some products may be even dangerous because there is no control of used materials or electric devices safety etc.