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Asustor AS53 Series NAS 2019 vs Synology DiskStation DS218j (2017)
Synology DiskStation DS218j
The Asustor AS5304T is a great Home NAS for its $429 asking price.
The Synology DiskStation DS218j, however, while a reasonable product for $169, doesn't stack up against its competitors quite as well. If you're considering Home NASs in the $160 range, you might want to check out some better options.
The Asustor AS5304T was loved by reviewers at PCmag, a highly trusted source that performs reliable in-depth testing. It did great in its "The Best NAS (Network Attached Storage) Devices for 2020" roundup where it was named its "Best for Power Users", which, in itself, makes it a product worth considering.
As for the Synology DiskStation DS218j - it was really well-received by reviewers at PCmag, a great source that's known for conducting high-quality in-depth testing. It performed great in its "The Best NAS (Network Attached Storage) Devices for 2020" roundup and was named its "Best for Basic home use", which, on its own, makes it a product that warrants a closer look.
We examined all of the review data that we could find and first took a look at sources that reviewed both of them, like PCmag, and found that they haven't shown a preference for either product.
Then we checked which sources liked these two Home NASs best and found that the Asustor AS5304T got its highest, 9, review score from reviewers at Windows Central, whereas the Synology DiskStation DS218j earned its best score of 9 from TrustedReviews.
Lastly, we averaged out all of the reviews scores that we could find on these two products and compared them to other Home NASs on the market. We learned that both of them performed far better than most of their competitors - the overall review average earned by Home NASs being 7.4 out of 10, whereas the Asustor AS5304T and Synology DiskStation DS218j managed averages of 8.5 and 8.7 points, respectively.
Due to the difference in their prices, however, it's important to keep in mind that a direct Asustor AS5304T vs. Synology DiskStation DS218j comparison might not be entirely fair - some sources don't take value for money into account when assigning their scores and therefore have a tendency to rate more premium products better.