Warranty information:
The product comes with a limited lifetime warranty, this means that the warranty period expires until five years after the company D-Link (or its successor) to terminate the sale of the product in Europe.
To be eligible for a limited lifetime warranty is necessary to register the product (see below) at D-Link Europe within thirty (30) days from the date of purchase. Registration can be done through self-service portal.
http://www.dlink.com/en/en/support/product-registration-and-support-log-in
DGS-3120-24SC Standard to Enhanced Image Upgrade
License