<http://schema.org/description>
"8.89 cm (3.5 \") 500GB SATA 6Gb/s IntelliPower 64MB Buffer"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.beat-it.nl/western-digital-500gb-purple-64mb3-5in-sata-6gb-s>