> 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/vxxx-series/v400m/v400m-installation-guide/device-overview.md). # Device Overview This chapter describes the features of the V400m and the V400m Bases. The V400m is Verifone's next-generation integrated retail PINpad device. The touchscreen functionality and sophisticated design are perfect for high-end retail establishments. The V400m is a consumer-facing handheld device. The product's design is equally appealing as a handheld PINpad and robust enough to look and function appropriately in a fixed mount setting. The V400m can utilize over-the-air connectivity, facilitating mobile telephony technology for sending and receiving data, using existing operator-provided 3G or 4G infrastructure: * V400m Plus 3G - provides third-generation High Speed Packet Access (HSPA) connectivity. * V400m Plus 4G - provides fourth-generation Long Term Evolution (LTE) connectivity. This guide provides an introduction and basic setup procedures for both 3G and 4G terminals, and will indicate where instructions vary for different models.

Figure 1: V400m Front

## Front Functions The V400m includes the following features: * Capacitive touch LCD display and CTLS tap area * Smart card reader * Magnetic card reader * Integrated thermal printer * Secure keypad supporting 4x4 matrix containing 0-9, \*, #, Cancel, Backspace/ * Clear, and Enter keys * Dual-function Backspace/Clear key * Customer-entry for Cancel and Enter keys ## Back Functions After removing the rear cover and battery, the underside of the V400m Plus 3G shows the following:

Figure 2: V400m Back

* A Micro SD slot * Dual MSAM slots to support stored-value card programs or other merchant card requirements * Dual SIM Card compartments ## V400m Bases The V400m Base provides a stable mounted platform for the V400m terminal. The Base comes in two versions: * V400m Charging Base * V400m Full-Function Base The Charging Base supports charging only with no communication functionality. The Full-Function (FF) Base supports several connectivity options and provides serial connection for peripherals (like ECR, check reader, barcode reader, etc.). The USB host port is for maintenance and supports a USB flash drive. ### V400m Charging Base The Charging Base accommodates and supplies power to the V400m Plus 3G and V400m Plus 4G portable terminals.

Figure 3: V400m Charging Base, Front and Rear

### V400m Full-Function Base The FF Base supports any failover communication via dial up and Ethernet connections for V400m Plus 3G and V400m Plus 4G units. The failover will be supported in all network interfaces available in a terminal.

Figure 4: V400m FF Base, Front and Rear

The FF Base supports a maximum of seven simultaneous terminal connections via Bluetooth (BT) as well as the following: * 10/100M Ethernet * 56K modem * WiFi * Wireless 3G (HSPA) and 4G (LTE) * USB host * USB device ## Features and Benefits The V400m terminal and Bases provide the following functionality: ### Ease of Use and Ergonomics * Touch screen enables easy menu control and signature capture. * Battery-powered for mobility and portable operation. * Integrated thermal printer for fast transaction processing. * Large, hard-rubber keys provide improved tactile feedback. * 3.5" capacitive touch screen display. * 3G capability (for V400m Plus 3G only). * 4G functionality (for V400m Plus 4G only). * WiFi and Bluetooth-capable. * Intuitive keypad interface simplify the training and reduces support requests. * Connects with most POS payment terminals, PCs and ECRs. * Supports payment transactions in a variety of payment environments. * Rugged and reliable design absorbs hard knocks found at point-of-sale counters. * Sleek and stylish shape occupies minimal counter space. * Bold, ergonomic design fits comfortably in the palm of a hand. * Optional Charging or Full-Function Bases expand functionality while providing a stable, battery-charging platform. ### Critical Security Protection * Offers a choice of Master/Session or DUKPT key-management methods to protect PIN-based transactions. * Offers secure, reliable PIN input for expanding the range of PIN-based transactions. * PCI 5.x-compliant for secure solutions, meeting the PED standard. * Meets ISO and ANSI standards for PIN encryption, key management and MAC. * Key injection is simplified and secured with Verifone's SecureKit key loading software. --- # 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/vxxx-series/v400m/v400m-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.