Other than the 24-inch diagonal panel, which feature differentiates the HP Z24i display from HP
Z22i and Z23i displays?

A.
178-degree horizontal and 178-degree vertical viewing angles

B.
exclusive flush, VESA mountable QR2 quick release

C.
full HD 1920×1200 @60 GHz

D.
two-port USB 2.0 hub

Explanation:
http://www8.hp.com/us/en/campaigns/workstations/zdisplays.html