HP 3com 4500 PWR POE 50-Port Switch 3CR17572-91$550.00 HP 3com 4500 PWR POE 50-Port Switch 3CR17572-91 Warranty: 12 months - HP 3com 4500 PWR POE 50-Port Switch 3CR17572-91 quantity + Add to cart Category: HP-3com Switches