The AC Power Adapter allows you to plug your monitor directly into your CPU. Simply plug the power adapter's female connector into another standard power cord (plug into NEMA 5-15P). This free up a wall outlet and allows you to turn off both the monitor and CPU with one switch.
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Sanoxy - Cables and Adapters; 6ft 18 AWG Monitor Power Adapter Cord (NEMA 5-15R to IEC320 C14) - Black