> 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/e355/e355-installation-guide/device-overview.md). # Device Overview This chapter provides a brief description of the e355. The e355 connects with various tablet devices for the next generation of PAYware Mobile enterprise. It supports the use of the Bluetooth SPP (Serial Port Profile) standard to connect between the e355 and the tablet. Some of the e355's key features include: a fast processor, large memory, the latest PCI (Payment Card Industry) 4.0 security, integrated 2D barcode scanner, mechanical keypad, and integrated contactless and NFC (Near Field Communication)-ready, in a small most versatile form factor. The e355 is a portable, battery-powered device designed to fit your hands comfortably and is ideal for consumer-facing and merchant-facing retail integrated applications. It has a removable battery that can be charged by an external power adapter through a micro-USB (Universal Serial Bus) connector and gang charger. It also features a crisp 320 x 240 color LCD (Liquid Crystal Display) display.

Figure 1: The e355 Unit

## Key Features * 400 MHz ARM (Advanced RISC Machine) 11 processor delivers power and usability in a convenient "hand-over" design * Offers unsurpassed performance on EMV (Europay MasterCard and VISA) smart card transactions * Multi-application operating environment * Security architecture exceeds specifications for PCI-PED (PIN Entry Device) and sophisticated file authentication * Advanced memory architecture to meet tomorrow’s needs * Multiple connectivity and contactless options * 32-bit processing and multitasking capabilities * Spill-resistant design prevents liquid from entering the unit by forcing it down and off the front of the device ## Features and Benefits The e355 provides the right combination of features and functions including a triple-track magnetic-stripe card reader, smart card reader, integrated PIN (Personal Identification Number) pad, colored display, 2D barcode reader, and contactless/NFC support. ### Exceptional Ease of Use * The lightweight, compact, stylish, and ergonomic balance allows convenient device hand-off to the consumer for PIN entry or other input. * Large, well-placed, mechanical keys provide a continuity of user experience between the e355 and the iOS, Android, or Windows device. * Horizontal magnetic stripe card reader with an enlarged card entrance delivers optimal card swiping and reading without the need to visually guide the card. * The e355 size is easily able to be dropped in most pockets. An optional hands-free holster is available that fits the server's or clerk's belt so that the e355 can be quickly removed and easily handed to the customer. ### Performance and Durability * Powerful 400-MHz ARM 11 processing completes transactions quickly. * High-capacity lithium-ion polymer battery that can rapidly charge. * Standard Micro-USB port allows for convenient product charging. * Rounded corners to minimize breakage and drop-resistant to 3 feet on concrete surfaces. * 192 MB of standard memory. ### Security * PCI PED 4.x approved for debit and other PIN-based transactions * EMV Level 1 type approval * Tamper-resistant construction, SSL protocols, and VeriShield file authentication * Supports VeriShield Protect encryption implementations ### Contactless Capability * Advanced contactless architecture that future-proofs investment with a single contactless interface (SingleCl), SoftSAMs, and side-by-side application architecture. * Large tap zone (above the keypad) that encompasses the PIN pad optimizes user experience. * Contactless version accepts EMV in addition to magnetic stripe contactless payments as well as PIN-based transactions. --- # 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/exxx-series/e355/e355-installation-guide/device-overview.md?ask=&goal= ``` `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.