PWR-3640-AC - Cisco 140-Watts AC Power Supply For 3640 PWR-3640-AC - Cisco 140-Watts AC Power Supply For 3640 $131.73
PWR-3640-DC - Cisco 140-Watt 72Vdc Internal Power Supply For 3640 Router PWR-3640-DC - Cisco 140-Watt 72Vdc Internal Power Supply For 3640 Router $327.38
34-0689-01 - Cisco 140-Watts AC Power Supply for 3640 34-0689-01 - Cisco 140-Watts AC Power Supply for 3640 $190.44