> For the complete documentation index, see [llms.txt](https://docs.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verifone.com/hardware-products/hardware/engage-devices/m4xx-series/m425/m425-installation-guide/specifications.md).

# Specifications

This chapter discusses power requirements, dimensions, and other specifications of the device.

## Power Rating

* 12V DC, 1.5A

## Power Pack

* CE(CB), UL/cUL, ITE listed, LPS Power Supply
* Input rated: 100-240V AC, 50/60 Hz
* Output rated: 12V DC, 1.5A, 18W

## Temperature

* Operating Temperature: -10° to 50°C (14° to 122°F)

## Memory

* 2 GB LPDDR3 + 16 GB eMMC
* Secure Processor: 8Mb SPI Flash

## Display

* 5.5 - inch (120.77 X 67.93) HD IPS LCD, Capacitive Touchscreen

## Magnetic Card Reader

* Triple Track (tracks 1, 2, 3), High Coercivity, Bi-Directional

## Primary Smart Card

* ISO 7816-3, 1.8V, 3V, 5V
* Synchronous and Asynchronous Cards

## MSAM Card Reader

* Three Security Access Modules (SAMs) Card Slots

## SD Card Reader

* One uSD Card Slot

## Integrated Contactless Reader

* ISO 14443, ISO 18092, EMV

## Keypad

* 12-Key telco-Style keypad
* Three Color-coded function keys below the keypad.

## Power button

* System suspends when pressed short
* Pops up Android menu when pressed long

## Audio Interface

* Supports 3.5mm Headphone Jack
* Built-in mono Speaker
* Built-in Piezo Transducer Buzzer
* Built-in Microphone

## Peripheral Ports

* Custom Multiport Cable

## Security

* Complies to PCI-PTS 6.X requirements, as well as many regional security requirements.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.verifone.com/hardware-products/hardware/engage-devices/m4xx-series/m425/m425-installation-guide/specifications.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.