How many displays can you use with HP Z620 and Z820 workstations? seenagape 11 years ago How many displays can you use with HP Z620 and Z820 workstations? A.up to 4 B.up to 6 C.up to 8 D.up to 12 Explanation:http://www8.hp.com/us/en/campaigns/workstations/z820.html ← Previous question Next question →