"We started this review comparing the N5200 Pro with the N4100 Pro, and appropriately, that is how we will end things off. The N4100 Pro sits nicely in the middle of Thecus' network attached storage options. It is vast improvement upon the original N4100 with updated features along with performance, and a step down from the N5200 Pro. In all ways that we can see, the N4100 Pro is simply scaled down, in size and performance. Even though the N4100 Pro accommodates one less hard drive, equipped with less memory and a less powerful processor, it packs the same great features, and the biggest difference, price."