<https://qnapdirect.com/products/qnap-ram-4gdr4a0-ud-2400-ram-4gdr4a0-ud-2400#product>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://qnapdirect.com/products/qnap-ram-4gdr4a0-ud-2400-ram-4gdr4a0-ud-2400>