How many external USB ports are available on the HP Z620 Workstation? seenagape 10 years ago How many external USB ports are available on the HP Z620 Workstation? A.3 B.6 C.9 D.12 Explanation:Reference:http://h18004.www1.hp.com/products/quickspecs/14262_na/14262_na.pdf(page 1,14th point) ← Previous question Next question →