<http://schema.org/description>
"AV-Green, 500GB, 64MB, 6Gb/s, 5400RPM, 8.89 cm (3.5 &amp;quot;)"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.pacetech.com/western-digital-500gb-64mb-6gb-s-5400rpm-500gb-serial-ata-iii.html>