5184-6992 - HP Rackmount Angle Kit for 12500 Switch Series 5184-6992 - HP Rackmount Angle Kit for 12500 Switch Series $220.45
J9805A - HP 640 Redundant External Power Supply Shelf for 2920 Switch Series J9805A - HP 640 Redundant External Power Supply Shelf for 2920 Switch Series $525.23