What type of connector does this power cord use?

This power cord uses a NEMA L6-20P locking connector on one end and an IEC-60320-C13 connector on the other end.

What is the length of the Nippon Labs L6-20P to C13 power cord?

The length of the Nippon Labs L6-20P to C13 power cord is 8 feet.

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Nippon Labs L6-20P / C13 High Voltage / High Current Power Cord, NEMA L6-20P to IEC-60320-C13, SJT, 14 AWG., 15A, 250V, Black 8 ft. Power Cable

High voltage NEMA L6-20P to C13 power cord is designed for connecting network devices that require higher-rated or heavier-gauge cabling to L6-20R wall outlet in a data center or network wiring closet.
The NEMA L6-20P locking connector allows it to be securely plugged into the power outlet for important equipment.
This heavy duty 14 AWG power cord is fully molded for durability.
UL and cUL listed.
All relevant materials are complied with RoHS and REACH directive.