ConnectZone.com has gotten another rather large shipment in of the CAB-AC-C6K-TWLK, AC  power cord for the Cisco Catalyst 6000 with the L6-20P Twist Lock connectors 10 feet long. The CAB-AC-C6K-TWLK has a NEMA L6-20P on one end & the square IEC-320-C19 on th4e other end. The Nema L6-20P connector plugs into the wall & then you give it a qurter turn to lock it in & ensure that it won't accidentally come unplugged.   ConnectZone.com Also carries this in other lengths like the 15 foot CAB-AC-C6K-TWLK-15 ConnectZone.com is not only your best source for CAB-AC-C6K-TWLK & other Cisco