Tripp Lite P036-006-2C19 power cable Black 70.9" (1.8 m) IEC C20 2 x C19 coupler

Heavy-Duty Y-Style Splitter Cable Connects 2 Devices with C20 Inlets to One C19 Outlet
This heavy-duty splitter extension cord features 12 AWG wire suitable for high power connections, making it a reliable solution for large server applications that require a higher-rated, heavier-gauge cable. This cord features a C20 plug for connecting to an AC power source and two C19 pigtails for connecting to devices. By connecting two devices to one outlet, the power cord splitter frees up space in a PDU, UPS system or surge protector and helps reduce cable clutter. The 6-ft. (1.83 m) length allows you flexibility in placing equipment with respect to the power outlet.

Dual IEC Cable Powers a Wide Variety of Essential Electronics
With this 20A power splitter, a single C19 outlet can power two high-output devices, such as servers, routers, blade server chassis and other equipment compatible with a C19 connector. Ideal for areas where AC outlets are limited, such as rack cabinets, this cable is compatible with most power and extension cords.