Transcend JetFlash 370

Transcend JetFlash 350/370 are identical except colour: 350 is black plastic skin, 370 is white. At least three revisions of this model exist:
 * bcdDevice 1.00, MaxPower 100 mA , 125890560 logical block (64455966720 octet) , acquired 2012-12
 * bcdDevice 11.00, MaxPower 500 mA , 126861312 logical block (64952991744 octet) , acquired 2013-09
 * bcdDevice 1.00, MaxPower 200 mA , 125878272 logical block (64449675264 octet) , acquired 2014-06

USB Flash Drive Controller (48 pins) is Silicon Motion SM3257EN "SM3257EN Q AA". Flash memory is two 48-pins packages, TLC NAND, labelled by Transcend as "TFGSTAP-1Q06" "T1301 A57202". Software "SMI Mass Production Tool V 2.03.37 v11 11/03/17" reports flash as "Samsung K9BDGD8U0M". Circuit board is Transcend internal number 29-0180, produced by H & T ELECTRONICS CO LTD, has mark UL File Number "E105181".



subjective
This model is garbage. It is a data destroyer: all three revisions corrupt user data. A storage device should either return valid data XOR return error when ECC mismatches. I observed all three return non-predictable random data. Not an excusable mistake, such as wrong data which coincidentally matches checksum, which would result in deterministic incorrect data. This Stick model returns different data every time bad spot is read.