> 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/exxx-series/e235/e235-installation-guide/device-overview.md).

# Device Overview

This chapter provides an overview of the e235 device:

The e235 device is a standalone, mobile wireless handheld payment device, making it easy to process contact and contactless transactions anywhere. It provides mobile payment capabilities via 4G connectivity. It is also a powerful 4G/Bluetooth/Wi-Fi (Wireless Fidelity) dual-band solution featuring advanced communication for a few dropped transactions so merchants can accept payments securely, extending their point-of-sale opportunities.

The e235 with physical keypad design accepts all payment methods Magnetic Stripe Reader (MSR), Primary Smart Card Reader (PSCR), Contactless (CTLS), and Wallets. The easy-to-read color screen is fully supported by Verifone's developer toolkit which enables to transform ideas into applications.

<figure><img src="/files/OFJXw19rvIk1xSX1qk2m" alt="" width="375"><figcaption><p>Figure 1: e235 Unit</p></figcaption></figure>

## Features and Benefits

The e235 provides the right combination of features and functions including a triple-track magnetic-stripe card reader, smart card reader, integrated (Personal Identification Number) PIN (pad and contactless/NFC (Near Field Communication) support.

### Key Features

* 300 MHz A9 processor delivers power and usability in a convenient "hand-over" design.
* Offers unsurpassed performance on Europay MasterCard and VISA (EMV) smart card transactions.
* Multi-application operating environment.
* Security architecture exceeds specifications for PCI (Payment Card Industry)-PTS (PIN Transaction Security) and sophisticated file authentication.
* Advanced memory architecture to meet tomorrow's needs.
* Multiple connectivity and contactless options.
* 32-bit processing and multitasking capabilities.
* Drop-resistant design minimizes breakage.

### Triple Radio Performance

The dynamic combination of Bluetooth chip, Wi-Fi and powerful 4G radio delivers fast, wireless payment convenience, fewer dropped transactions, and flexible point-of-sale options.

### Modern Application Environment

* Reliable operating system and powerful tools to create a richer customer experience.
* Common Engage software architecture enables faster and more cost-effective application development.

### Accepts All Forms of Payment On-the-Go

Accommodates all payment types - Magstripe, EMV, Contactless/NFC and mobile wallets along with a 2.3-inch color screen.

### Ease of Use

* The lightweight, compact, stylish, and ergonomic balance allows convenient device hand-off to the consumer for PIN entry or other inputs.
* Horizontal magnetic stripe card reader for optimal card swiping and reading.

### Performance and Durability

* Powerful 300 MHz A9 processing completes transactions quickly.
* High-capacity lithium-ion battery pack.
* The (Universal Serial Bus) USB-C port allows convenient product charging as well as connection to Android and Windows devices.
* Rounded corners to minimize breakage and drop-resistant to 3 feet on concrete surfaces.
* 512MB Flash, 512MB (Double Data Rate) DDR (Random Access Memory) RAM.

### Security

* PCI PTS 6.x approved for debit and other PIN-based transactions.
* Tamper-resistant construction, (Secure Socket Layer) SSL protocols
* Direct key injection using industry standard (Hardware Security Module) HSMs.
* VeriShield Retain
* VeriShield Remote Key
* Verifone Secure Data
* VeriShield Total Protect
* MasterCard TQM (Terminal Quality Management)
* IPP8 (Internal PIN Pad) functionality plus multiple DUKPT (Derived Unique Key Per Transaction) engines
* EMV L1 and L2
* ISO(International Organization for Standardization)7816-3, ISO7816-4 and EMV 4.3 standards

### Contactless Capability

Advanced contactless architecture that future-proofs investment with a single contactless interface (SingleCl), SoftSAMs, and side-by-side application architecture. On-screen tap zone for optimized user experience.

### Connectivity

**USB host/device port**

* UARTUniversal Asynchronous Receiver/Transmitter)0 software debug (TXD0, RXD0)
* USB 2.0 high speed
* 5V/200mA for external USB peripherals
* USB host or device is configured by SW
* Type C USB connector on the side
* Communication port for the smart device on charge stand (Android and Windows).

**Bluetooth (wireless communication)**

* Bluetooth 4.1 + EDR (Enhanced Data Rate) compliant
* Eddystone + iBeacon
* RF (Radio Frequency) transmitter output power Class 1
* RF receiver GFSK typical -90 dBm /4 PSK (Pre-Shared Key) typical -90 dBm, 8D PSK typical -83 dBm

**Wi-Fi (wireless communication)**

* BT (Bluetooth), Wi-Fi
* Wi-Fi dual band supports:
  * 802.11 a/b/g/n/ac connectivity
  * 2.4GHz and 5GHz
* Auto-band selection

**4G (wireless communication)**

* GPRS/GSM (General Packet Radio Services/Global System for Mobile Communications) Class 10
* UMTS/HSPA DL 7.2Mbps, UL 5.7Mbps


---

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