- Obtained from: AliExpress
- Advertised capacity: 256GB
- Logical capacity: 268,435,456,000 bytes
- Physical capacity: 31,434,108,416 bytes
- Fake/skimpy flash: Fake flash
- Protected area: 0 bytes
- Speed class markings: None
- CID data:
- Manufacturer ID:
0x00 - OEM ID:
0x0000 - Product name:
0x4150505344(ASCII:APPSD) - Product revision:
0x00
- Manufacturer ID:
| Sample # | 1 | 2 | 3 | Average |
|---|---|---|---|---|
| Price paid | $3.00 | $3.00 | $3.05 | $3.02 |
| Manufacture date | Nov 2022 | Not yet tested | Not yet tested | N/A |
| Serial number | 0x12800006 | Not yet tested | Not yet tested | N/A |
| Sequential read speed (MB/sec) | 6.92 | Not yet tested | Not yet tested | 6.92 |
| Sequential write speed (MB/sec) | 11.92 | Not yet tested | Not yet tested | 11.92 |
| Random read speed (IOPS/sec) | 1,287.01 | Not yet tested | Not yet tested | 1,287.01 |
| Random write speed (IOPS/sec) | 0.62 | Not yet tested | Not yet tested | 0.62 |
| Read/write cycles to first error | 377 | Not yet tested | Not yet tested | 377 |
| Read/write cycles to complete failure | Not yet determined | Not yet tested | Not yet tested | Not yet determined |
| Total days to complete failure | Not yet determined | Not yet tested | Not yet tested | Not yet determined |
| Card reader used | ASUZIO CAZE | Not yet tested | Not yet tested | N/A |
| Package front |  | Not yet tested | Not yet tested | N/A |
| Package back |  | Not yet tested | Not yet tested | N/A |
| Card front |  | Not yet tested | Not yet tested | N/A |
| Card back |  | Not yet tested | Not yet tested | N/A |
Discussion
Ok, let’s be clear: I didn’t want to test this card. I had already one of the 128GB and one of the 2TB variants of this card and knew that they were fake and performed poorly. However, my decision to test at least three samples of each card came back to bite me in the ass here: when I ordered two more of these cards, the seller actually sent me two 256GB cards instead.
Well crap.
So…I went to a different seller and got two 128GB cards. But what to do with these cards? I know they’re fake. I know I have no use for them outside of this project. Might as well get a third one and add it to my test set.
I found the ASUZIO CAZE through random internet searches and wanted to try it out, so I decided to use sample #1 as a test case for this card. The only thing that stood out about this card — compared to the other Lenovo’s I’ve tested to date — is that it got slower sequential read and random write speeds than any of the others. But aside from that, it’s a pretty unremarkable knockoff fake flash card.
Sample #1 is still undergoing endurance testing. Its first error was a series of bit flips, affecting four sectors, during round 378. As of the time of this writing, it has completed 413 read/write cycles — however, I don’t expect it to last too much longer, as it’s been experiencing I/O errors for quite some time and has been stuck on the same round of testing for the last two weeks.
Samples #2 and #3 are still in the package waiting to be tested.
September 15, 2024