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Can You Use an Xbox 360 Power Brick on an Original Xbox? Absolutely Not – Here's Why

Absolutely not. The Xbox 360 power supply is electrically and physically incompatible with the original Xbox. Using it will permanently damage the original console.

Key Differences

Specification	Original Xbox	Xbox 360
Connector	Round 4-pin (proprietary)	Rectangular keyed (proprietary)
Output Voltage	~12V / 5V / 3.3V (multi-rail)	12V / 5VSB (varies by revision)
Max Wattage	~150–180W	203W / 175W / 150W / 135W (rev dependent)
Pinout	Unique	Unique

What Happens If You Force It?

You cannot physically connect them without cutting/splicing wires. If you did, the wrong voltages on the wrong pins would fry the motherboard, GPU, CPU, and drive electronics instantly.

Correct Replacements

Original Xbox: Use only a genuine Microsoft "Xbox Power Supply Unit" (model 1011160-001A or 1011160-002A) or a high-quality third-party equivalent rated for the exact same voltages and connector.
Xbox 360: Match the wattage to your console revision (Xenon/Zephyr=203W, Falcon/Opus=175W, Jasper=150W, Slim/Trinity=135W/120W). Connector keying prevents mismatches.

Bottom Line

Never mix power supplies across console generations. Buy the correct unit for your specific console model.

Xbox 360