C4KX-PWR-750AC-R= Cisco 882658486579 Showing the single result Sale! Cisco 750W AC FRONT TO BACK COOLING POWER SUPPLY FOR CATALYST 4500-X C4KX-PWR-750AC-R= $3,080.16 Original price was: $3,080.16.$1,879.53Current price is: $1,879.53. Add to cart Add to wishlist