Summary: After having spent lots of quality time with the N5550 NAS, my thoughts about it are mixed. It was very reliable and performed well during all testing, registering high enough network transfer speeds. I also liked the fact that Thecus provides the option to skip disk check during RAID creation since it curtails RAID creation times significantly.
Pros: High price/performance ratio, Support for five hot-swap disks, Highly reliable operation, Low power consumption, Strong PSU (200 W) with 80 Plus certification, Comes with 2 GB RAM installed while most of the competition only has 1 GB, Fully metallic casing, Very high build quality, Lots of features, HDMI, VGA, and audio out ports, Supports all popular RAID levels, Dual Gigabit ports (with LACP support), Option for fast RAID creation, Front USB 3.0 port (though covered...
Cons: The operating system's interface isn't as appealing and intuitive as the competition's offerings, Installing available modules can be really tricky, High memory utilization, especially during heavy network throughput, Fan can be noisy, No fan profile adjustment via software possible, Any change to the Networking Section (and not only) demands for a lengthy reboot, No option to format an external drive, The trays aren't numbered, Long reboot time (100 seconds), Limited...
Conclusion: The Thecus N5550 is one of the most feature packed and capable five-bay NAS solutions currently available for under £450. Armed with a dual-core Intel Atom processor and 2GB of DDR3 memory, the N5550 consistently serves up data transfer speeds close to 100MB/s, and it has a feature set that easily encompasses the needs of both home and office users.
Do much more than just store data with this 5-bay network-attached storage device
Good Gear Guide.au
5 August 2013
Summary: There is plenty to like about the Thecus N5550. It has five drive bays yet it doesn't cost the Earth, and it can be almost endlessly configured via extra modules from Thecus and third parties. However, it's a device that does require a fair bit of tinkering so only consider it if you don't mind getting your hands dirty.
Pros: Five drive bays, Well priced, Stacks of features to play with
Cons: Needs clearer and more in-depth documentation, Build quality doesn't feel great
Test Thecus N5550 : un NAS « construit pour durer »
3 weeks ago
Excerpt: Thecus N5550 Résolument haut de gamme - au moins par rapport aux autres modèles de notre comparatif - le Thecus N5550 est l'un des rares à permettre la mise en place de cinq disques durs. Il se pose ainsi en remplaçant du N5500 que nous testions il y a de cela deux ans. Une mise à jour rendue indispensable par les progrès réalisés par la concurrence et qui permet de remplacer le vieillissant Celeron M par un plus fringant Atom.
Pros: Système de double-DOM, Performances de haut niveau, Écran LCD pratique
Cons: Réactivité de l'interface, Prix dans la moyenne haute, Gestion HDMI perfectible