Is the Xbox One/Series Power Supply the Same as Xbox 360? No—Physically and Electrically Incompatible

No. They are physically and electrically incompatible.

Feature	Xbox 360 Power Supply	Xbox One / Series X\|S Power Supply
Connector to Console	Proprietary wide keyed plug (varies by model: 203W, 175W, 150W, 135W, 120W)	Standard Figure-8 (C7) / C13 IEC or Proprietary rectangular (Series X internal PSU uses C7; Series S internal; Xbox One external brick uses proprietary rectangular)
Voltage Input	Region-specific (110V or 220V models). Not universal.	Universal 100–240V (all models). Travel-ready.
Wattage	120W – 203W (depends on motherboard revision)	Xbox One: 220W (ext brick). Series X: 315W (internal). Series S: 125W (internal).
Form Factor	External "Brick" (all models)	Xbox One: External brick. Series X/S: Internal PSU (just a detachable AC cord).

Critical Warning

Never force a 360 plug into a Series X|S or One, or vice versa. You will damage the console's power rail instantly. The 360's proprietary connector carries 12V/5V/3.3V on specific pins; the Series X|S C7 input expects 100-240V AC.

What If You Lost the Cord?

Series X|S: Standard **C7 "Figure-8" cable** (same as PS4, PS5 Slim, many laptops, soundbars). Buy any UL-listed 18AWG cord.
Xbox One (Original/S/X): Requires the specific **external power brick + AC cord**. Buy Microsoft OEM or reputable third-party (Delta, Lite-On) matching your console's wattage.
Xbox 360: Match the **wattage label on your console's back** (near power port) to the brick (e.g., "12V 12.1A" = 150W). Do not use a lower-watt brick.

Xbox 360