Verifone VX 820 duet

High-end stand-alone countertop terminal

The VX 820 is the preferred choice for Adyen’s high-end customers with a fixed checkout point.

Verifone’s flagship countertop terminal, the Duet configuration comes with a base with built-in printer and Ethernet connectivity for stand-alone use. 

The VX 820 is fully part of Adyen’s omnichannel offering, and includes the following features: 

  • Supported by all Adyen libraries (Windows, iOS, and Android)
  • Uses point-to-point encryption
  • Capable of DCC
  • Supports cross-channel and cross-country refunds, shopper recognition, in-transaction loyalty opportunities, and other advanced cross-channel use cases. 

It is pre-certified with Adyen acquiring and ready for deployment in all European countries and the US through a single integration.

Schemes and regional coverage

Pre–certified with Adyen acquiring for Europe and the United States*


Compatible integrations: 

N.A. (customized for stand–alone use)

Hardware certifications (selection):

  • PCI PTS 3.X
  • EMV Level I & II

Hardware specs

  • Display: 3.5” QVGA resistive color touchscreen
  • Dimensions: 178x98x109mm (7.0x3.9x4.3 inch)
  • Weight: 735 grams/1.62lbs (excluding cables)
  • Memory: 160MB (128MB Flash, 32MB SDRAM)
  • Processor: 400 MHz ARM11 32–bit RISC
  • Card readers:
    • Contact 
    • Contactless 
    • Triple track MSR
  • Printer: Integrated printer
  • Connectivity: Wifi, Ethernet*
  • Power: 5–12VDC, 3.8W maximum consumption

*Adyen strongly recommends using Ethernet connectivity, due to its superior speed and performance with a number of Operating Systems. 

What’s in the box 

Standard included:

• VX 820 Pin Pad
• VX 820 Duet Power Supply
• VX 820 Duet Cable Coiled
• VX 820 Power Cord (EU, UK, or the US)
• 2x Adyen Receipt Roll
• VX 820 Duet base
• Connectivity:


Integrated Ethernet/RS232 cable 1m (40inch) and dongle (Ethernet cable not included)




Integrated Ethernet/RS232 cable 1m (40inch) and dongle

RS232 to Serial cable (Windows) 


USB serial

Integrated Ethernet/RS232 cable 1m (40inch) and dongle

RS232 to Serial cable (Windows)

USB 2.0 to Serial Adapter 

Adyen accessories (optional): 

Silver medium profile privacy shield

Adyen’s payment solution is only compatible with payment terminals provided by Adyen.

All Adyen terminals are prepared in an environment secured in accordance with the applicable PCI DSS security standard and are shipped with Adyen payment terminal software pre-installed and Adyen’s security keys included. Terminals provided by Adyen can only be used in combination with Adyen’s end-to-end payment solution. Extended warranty options available. Please refer to your merchant agreement or Adyen support for more information.

*For Amex some countries restrictions apply, please contact Adyen for details.