... Not mature! Sorry! The USER is again abused as a beta tester ...

I run the unit with 4x "WD 4TB Red" HDDs. In gigabit network with a LAN port: only ~ 30MB / sec writing from a Windows released! - Reading after all ~ 75MB / s.
With link aggregation, including both LAN ports slightly better, but still very far from the ways and announcements.

Overall, a far cry from the swaggering statements ZyXEL in advance!

The device is much slower than the already longer time available 2-bay NAS "NSA-325v2" - this is a joke !!!

The hard disk built-in clip rails are a joke from yellow plastic - but I rate not because the installation was, after all, worked!

Here the user is again beta-testers ... and that in the worst sense!

1 star because the price was ok and the optics certainly knows how to please ... (currently exclusive launch campaign for 169.00 at major notebook Verramscher to 4.1.15) - and because of the hope of improvement - if probably not shortly! ) -:

Dear still 3-4 firmware versions (at least 1/2 year.) Wait - I speak a bit of my personal experience, Zyxel.

!!! Please also read comments! There it goes ... !!!

// Last updated: I was a bit annoyed at the Forum of the page! Not like that. Have the unit sells and try my luck with another manufacturer.

Personally, I am deeply disappointed with Zyxel and the support team and no one could this device to others. That was my last device of Zyxel!

Have done!

// Update from 01/30/2015

* The promised for mid-January update may come in February and therefore postponed for the 3rd time ...
* The contribution Zyxel Forum regarding criticism of the (shift) firmware has been deleted!

Pretty little kritikfähig !!!

Moored her such a store really your data? I'm going to get rid of my NAS on eBay! You learn: Buy Cheap buy is 2x !!!