How many external USB host ports does the HP LaserJet Enterprise M4555 MFP have? seenagape 10 years ago How many external USB host ports does the HP LaserJet Enterprise M4555 MFP have? A.0 B.1 C.2 D.3 Explanation: Reference:http://www.hp.com/hpinfo/newsroom/press_kits/2011/businessprinting2011/HP_LaserJet_Enterprise_M4555.pdf ← Previous question Next question →