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A simple adapter plate to install a Guardian Avionics USB Power 250 or 150 USB Power Supply with Round Faceplate into a standard 2.25 (2 1/4) inch instrument position. Comes with four installation screws and two countersunk screws to install the power supply into the adapter.

A simple way to install a USB power supply into a spare instrument opening without requiring a panel cut.

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California Residents:

Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.