How many integrated (on-board) COM ports does the HP rp5700 POS System have? seenagape 10 years ago How many integrated (on-board) COM ports does the HP rp5700 POS System have? A.One B.Two C.Three D.Four Explanation: Reference:http://h18000.www1.hp.com/products/quickspecs/12703_na/12703_na.PDF (see page 17) ← Previous question Next question →