- Obtained from: Amazon
- Price paid: $6.31
- Advertised capacity: 64GB
- Logical capacity: 62,226,694,144 bytes
- Physical capacity: 62,226,694,144 bytes
- Fake/skimpy flash: Skimpy (2.77% skimp)
- Protected area: 134,217,728 bytes
- Adjusted skimp: 2.56%
- Speed class markings: Class 10, U3, V30, A1
- CID data:
- Manufacturer ID:
0x27* - OEM ID:
0x5048(ASCII:PH)* - Product name:
0x5344363447(ASCII:SD64G) - Product revision:
0x60
- Manufacturer ID:
* This manufacturer ID/OEM ID is pretty well known to be associated with Phison.
| Sample # | 1 | 2 | 3 | Average |
|---|---|---|---|---|
| Manufacture date | Oct 2022 | Oct 2022 | Oct 2022 | N/A |
| Serial number | 0xda3d4dcd | 0xda3eb2a0 | 0xda3e9910 | N/A |
| Sequential read speed (MB/sec) | 89.86 | 89.63 | 89.52 | 89.67 |
| Sequential write speed (MB/sec) | 37.29 | 35.23 | 36.73 | 36.42 |
| Random read speed (IOPS/sec) | 2,330.07 | 2,239.02 | 2,277.75 | 2,282.28 |
| Random write speed (IOPS/sec) | 1,024.11 | 993.08 | 1,017.29 | 1,011.49 |
| Read/write cycles to first error | 947 | 874 | 2,460 | 1,427 |
| Read/write cycles to 0.1% failure threshold | Not yet determined | Not yet determined | Not yet determined | Not yet determined |
| Read/write cycles to complete failure | Not yet determined | Not yet determined | Not yet determined | Not yet determined |
| Total days to complete failure | Not yet determined | Not yet determined | Not yet determined | Not yet determined |
| Card reader used | JJC CR-UTC4AC | JJC CR-UTC4AC | JJC CR-UTC4AC | N/A |
| Package front |  | N/A | ||
| Package back |  | N/A | ||
| Card front |  |  |  | N/A |
| Card back |  |  |  | N/A |
Discussion
It wasn’t until pretty late into this project that I realized that PNY hadn’t been represented in my survey thus far. I hadn’t managed to find any PNY cards on AliExpress — at least, not any PNY-branded cards — so I had to look at what Amazon had. I chose two models: this, and the Premier-X 128GB. As you may have guessed from the pictures, this card was offered in a three-pack — so the price you see above is divided evenly between the three cards.
Performance-wise, this card scored slightly above average in all performance metrics, with the exception of random write scores — where all three samples scored more than one standard deviation above average, almost nearly two standard deviations above average. The worst of the three random write scores would put it in the 92nd percentile. Not bad!
These cards bear the Class 10, U3, V30, and A1 performance marks. All three samples performed well enough to qualify for all of these marks.
All three samples are currently undergoing endurance testing:
- Samples #1’s first error was a two-sector wide address decoding error during round 948. It has survived 4,010 read/write cycles in total so far.
- Sample #2’s first error was a two-sector wide address decoding error during round 875. It has survived 3,984 read/write cycles in total so far.
- Sample #3’s first error was a four sector wide address decoding error during round 2,461. It has survived 4,198 read/write cycles in total so far.
November 4, 2024 (current number of read/write cycles is updated automatically every hour)