Impinj RFID reader with 4 antenna ports. Enterprise-class reader with ulra-high performance and efficiency.
Volume discounts on RFID reader prices.


Impinj RFID Reader R420

Impinj Speedway R420 UHF RFID Reader delivers peak performance in most challenging applications. Litum offers volume discounts on RFID reader prices.

  • 4 antenna ports
  • Device management and monitoring
  • Industry standard application interface with support for EPCglobal Low Level Reader Protocol (LLRP)
  • Power over Ethernet (PoE) and WiFi/cellular modem connectivity
  • Quality design resulting in industry’s highest reliability
  • High transmit power (within regulatory limits), Autopilot software, and leading receive sensitivity for overall highest readability

With its exceptional read rate performance and 4 antenna options, Impinj Speedway R420 is one of the most popular readers on the RFID market. 

Product Specifications

General Specifications

  • Air Interface Protocol
    EPCglobal UHF Class 1 Gen 2 / ISO 18000-6C
  • Antennas
    4 high performance, monostatic antenna ports optimized for Impinj reader antennas (RP TNC)
  • Transmit Power
    +10.0 to +32.5 dBm (w/ external universal power supply)
  • Max Receive Sensitivity
    -82 dB
  • Application Interface
    EPCglobal Low Level Reader Protocol (LLRP) v1.0.1, Speedway Revolution SDK & EDK

Physical & Environmental

  • Environmental Sealing
  • Shock and Vibration
    Mil-Std-810G Certified
  • Dimensions (H x W x D)
    19 x 17.5 x 3 cm
  • Weight
  • Operating Temperature
    -20 C to +50 C

Electrical & Communication

  • Power Sources
    Power over Ethernet (PoE) IEEE 802.3af, +24 VDC @ 800mA via external universal power supply with locking connector—sold separately
  • GPIO
    4 inputs, optically isolated 3-30V; 4 outputs, optically isolated, 0-30V, non-isolated 5V, 100mA supply (DB-15)
  • Network Connectivity
    10/100BASE-T auto-negotiate (full/half) with auto-sensing MDI/MDX for auto-crossover (RJ-45)
  • USB
    USB 1.1 Device (Type B) and Host (Type A) ports • USB Virtual COM Serial Port and USB drive support for embedded applications

Peak Performance 24/7

Autopilot technology senses, configures, adapts Speedway readers use Autopilot, a set of unique firmware features that work together to automatically optimize the reader’s operation for its environment, delivering peak performance at all times. Autoset—senses levels of RF noise and interference, automatically selecting appropriate settings.

Low duty cycle—reduces RF interference, power consumption, and energy costs Dynamic antenna switching—senses where tags are in the field and automatically focuses on antennas with the largest tag populations, improving throughput and efficiency.

Software Tools

Every Speedway reader user can access MultiReader, a tool designed to allow you to quickly assess your reader’s performance and view tags. Speedway Connect software provides and easy-to-use graphical interface for setting basic reader configurations and also delivers a cost-effective method for readily converting barcode read points to RFID technology with minimal disruption to existing operations. More advanced users can take advantage of the Speedway Development Kit and Embedded Developer’s Kit to customize performance and reader output to their application.