# Arduino Mega 2560 R3

> What are the Arduino Mega 2560 dimensions and mounting holes?

- Category: Electronics › Microcontroller boards · 2010
- Kind: Modern device
- Basis: published board outline
- Page: https://xemstudio.com/objects/arduino-mega-2560/ · JSON: https://xemstudio.com/api/geometry?object=arduino-mega-2560 · Plain text: https://xemstudio.com/objects/arduino-mega-2560/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); linked files under their publishers' licenses

## Overall (mm)

| length | width |
|---|---|
| 101.52 | 53.3 |

Mounting holes: 4 × Ø3.2 mm, pattern see official outline mm, M3

## Notes

- Uno-compatible header positions at the USB end; four mounting holes.
- USB-B and barrel jack on the same short edge as the Uno.

## Where the files are

- Arduino (official): [Mega 2560 documentation, CAD files](https://docs.arduino.cc/hardware/mega-2560/) — STEP, DXF, PDF — see page (verify at link)

## Questions

**What are the Arduino Mega 2560 R3 dimensions in mm?**

101.52 × 53.3 mm (length × width × height). Uno-compatible header positions at the USB end; four mounting holes.

**What is the Arduino Mega 2560 R3 mounting hole pattern?**

4 × Ø3.2 mm on a see official outline mm pattern, M3 screws.

**Where is the official CAD for the Arduino Mega 2560 R3?**

Arduino (official): Mega 2560 documentation, CAD files (STEP, DXF, PDF, see page). Linked from the sheet; Xem Studio does not rehost it.

## Fits with

- [Arduino Uno R3](https://xemstudio.com/objects/arduino-uno-r3/)
- [Threaded standoffs, M2.5 and M3 (hex and round)](https://xemstudio.com/objects/threaded-standoffs-metric/)