Apacer Endurance Gen4 x4 NAS SSD 1TB Review
This drive is rated for 5000 MB/s Read and up to 4400 MB/s write, and while we exceed that for the read speed, the write speed came in around 4000 MB/s, which is on par with what we would expect from a Gen4 SSD.
While the IOPS were above what we would typically see for Gen4, they’re not quite as high the (up to) 340K from the specifications, but honestly, this is still a very good result, so no issues here for a Gen4 drive.
The drive gets up to speed pretty darn quick, with 64KB block seeing the drive getting very close to its maximum read and write speeds, which is really impressive.
Response times are fantastic, with strong read and write speed, impressive IOPS and a good overall score throughout this test.
Moving a 64MB folder of lots of small files took just 371 ms, which is what we would expect given the fast speeds on small blocks from our tests so far.
If we move up to moving 50GB (as six large files) the time was 21226 ms, seeing the drive get up to around 2400 MB/s, and again, this is on track for what I would expect from a Gen4 drive.
Loading typical ISOs, programs and games, obviously not an issue, and while sure, you can get faster Gen5 drives now, they’re a heck of a lot more expensive, and Gen4 is plenty fast for single drive users, but obviously this will scale when used in a NAS environment.
It displayed interesting behaviour in AS SSD, as read speeds climbed consistently with higher data compressibility, write speeds were less predictable, showing dips and a dramatic jump at 80% compression. This suggests the drive’s write performance is influenced by the type of data it’s handling, with a clear advantage when dealing with highly compressible files. Overall, the PB4480-R 1 shows strong read performance, but its write speeds are less consistent, particularly with incompressible data.
For high resolution video capture, the drive passed with flying colours, no issues for those using it for real-time recording of high quality video assets.

While not a gaming drive, it does excel here, scoring Extreme High in the Final Fantasy XIV: Endwalker Benchmark.

And finally, we have the temperatures, which largely sat at just 41c for most daily usage, but peaked at just 54c under extreme and extended loads. When it comes to cooling, this should be easy to manage, especially in a NAS that likely has its own heatsinks and active cooling fan.