CrystalDiskMark and ATTO benchmark
ATTO Benchmark
Again, it is expected that the performance to average around 120MB/s compared to 150MB/s on the WD Black 4TB HDD.
CrystalDiskMark
Likewise, for CrystalDiskMark, the sequential read and write performance averages 120MB/s.
Again, I have to emphasis is that the comparison with WD Black 4TB is for reference only.