Genuine Asus 0A001-00031300 which has a very small rectangle charging box unit which powers at only 40w and outputs at 19v 2.1a is supplied with a mains power cord and plug, however if you order from outside the UK we will send your countries correct power cord. This has a pin connection diameter of just 1.35mm
Genuine Asus 0A001-00031300 Ac adapter specification:
Power output: 19v 2.1a
Ac adapter power: 40w
Power input: 100-240v
Tip pin size: 4.0mm * 1.35mm (Asus new micro pin)