The 4TB version of the IronWolf NAS series is able to deliver quite a bit of performance and considering that we are discussing about a 5900RPM model, it is even more impressive. This fact recommends it for both NAS usage but also as an internal drive where we can store backups or work on large projects which would not regularly fit on the SSD. The extra technologies such as AgileArray feature dual-plane balancing for getting an overall consistent performance, but also power management optimizations and higher reliability versus the regular desktop drives.