The IEC C13 is a common AC power connection. You’re likely to have one plugged into your computer, your guitar amp or your soldering iron. This power cable has a C13 connector on one side and a standard US 3-prong plug on the other. Rated for 7A at 120V.
Note: The connectors are rated at 15A, but the wire itself contains 22 AWG, which is good for 7A at 120VAC.
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The Line and Neutral connections are reversed on the one I got. At least the ground is in the right place…