Recently, I ordered a few USB flash drives from Chinese sellers, and on three flash drives, I got two fake capacity drives, this is a real plague for years on the WEB market. One fake 32Gb and one fake 64Gb , they tested 14.8Gb and 15.1Gb OK (Average for 16Gb flash drive). I test all my flash drives using H2testw 1.4 , very helpful for detecting fake capacity flash drives. These drives worth nothing, except if you are able to flash the controler chip memory with a tool from the chip manufacturer (Hard to find the right tool) to give them their real capacity, otherwise, they will only corrupt data. I hope to be refunded right away when I will show the H2testw logs to the sellers, but the sellers will cancel the transaction, and I will not be able to leave negative feedbacks. I recommend to do the same. Or, if you have more courage, leave them explicit negative feedbacks.