Impinj Speedway Revolution R420 UHF RFID Reader (4 Port)



Impinj Speedway Revolution R420 UHF RFID Reader (4 Port)

The Speedway Revolution R420 UHF RFID Reader delivers the performance, quality, and reliability necessary for maximum visibility of tagged inventory and assets. Able to maintain high read rates regardless of RF noise or interference as the readers adapt automatically for optimal functionality, Speedway readers are a powerful piece of item visibility platform solutions. Impinj's innovative Speedway® Revolution RFID reader with Autopilot automatically optimizes its operation to the environment—delivering peak performance at all times. The Speedway Revolution reader improves upon the legacy of the original, EPC-certified Speedway reader that was the first high-performance reader designed from the ground up (not merely upgraded) to support the EPCglobal UHF Gen 2 standard in its entirety. The Speedway R420 reader is supported by a suite of software, hardware, and antennas that deliver application and deployment flexibility, making installation and expansion easier than ever.

Data Sheet  Impinj Speedway Revolution R420 UHF RFID Reader (4 Port)


Quick Start Guide  Impinj Speedway Revolution R420 UHF RFID Reader (4 Port)


Need help selecting the right reader? Check out our reader guide.

What's included?

  • Impinj R420 Reader Unit
  • AC Power adapter, if selected above
  • One Year Factory Warranty

Why buy this reader?

The R420 is one of the most popular readers on the market. Designed for high performance and high efficiency, the self-optimizing Speedway Revolution R420 was created for anyone and everyone looking for high quality, high value, and high usability.


  • Autopilot — a set of unique firmware features work together to automatically optimize the reader's operation for its environment.
  • Autoset — continuously optimizes the reader's configuration for the best, most reliable performance.
  • Low duty cycle — reduces RF interference, power consumption, and energy costs.
  • Dynamic antenna switching — improves throughput and helps the reader work more efficiently.
  • Power over Ethernet (PoE) — simplifies deployment and dramatically reduces cost by eliminating the need for AC outlet installation at read points.
  • Improves upon the advanced hardware capabilities that made the original Speedway the reader of choice for many demanding customers—capabilities such as best receive sensitivity, interference rejection, and item-level carrier cancellation.
  • 4 Antenna Ports - Expandable to 32 antennas with Impinj Speedway Antenna Hub to deliver low total cost of ownership and greater application flexibility. 
  • The industry’s highest RF sensitivity (-84dBm) provides greater accuracy and longer read ranges.
  • Field-proven, enterprise-class durability with high mean-time between failure.


At atlasRFIDstore, we provide our customers with innovative and high-quality UHF RFID readers. If you are looking for one of the best RFID readers available, consider the Speedway Revolution R420. Manufactured by Impinj, a trusted leader in RFID, the R420 is designed to adjust to its surroundings and environment on the fly, the versatile reader provides peak performance at all times of operation. Whether this is your first time purchasing an RFID reader, you are replacing one that no longer works, or your low-quality model just isn’t cutting it anymore, the Speedway Revolution R420 is for you!

The Speedway Revolution R420 comes equipped with numerous performance features setting it apart from other RFID readers on the market. The hallmark feature of the R420 is Autopilot which automatically adjusts and optimizes for any environment. Another feature, Autoset, constantly optimizes the reader’s configuration saving you valuable time. The Speedway Revolution R420 also comes fully equipped with dynamic antenna switching helping the reader perform more effectively and efficiently.

All these features plus many more make it the first choice for a wide variety of customers around the world and across many industrial verticals. Capabilities such as best receive sensitivity, interference rejection, and item-level carrier cancellation are all examples of the high quality features you will receive when you invest in the Speedway Revolution R420. Because of its high level of efficiency and automatic optimization, the Speedway Revolution R420 saves you time and money in the long run, so it’s a smart investment if you are looking to buy an RFID reader. If you are looking for an RFID reader that will make your business more effective and efficient, the choice is simple.

Certified Regions and Geographies

The R420 is available for purchase and operation in the United States, Mexico, and Canada (FCC, IPJ-REV-R420-USA2M1); European Union, India, Morocco, Saudi Arabia, and the UAE (EU, IPJ-REV-R420-EU12M1); Approved EU Upper Band Countries (EU Upper Band, IPJ-REV-R420-EU22M1); Brazil, Hong Kong, Indonesia, Malaysia, New Zealand, Philippines, Singapore, Taiwan, Thailand, Uruguay, and Vietnam (IPJ-REV-R420-GX12M1); China, South Korea, and South Africa (IPJ-REV-R420-GX22M1); Australia (IPJ-REV-R420-GX32M1); and Japan (IPJ-REV-R420-JP22M1).

EU Upper Band Country List

*Note: Acceptance of EU 2018/1538 varies by country. The following table summarizes Impinj’s understanding of country acceptance as of May 2020. Impinj recommends contacting the country’s communications ministry for confirmation. Impinj expects those countries listed as “decision pending” will accept upper band operation.

Recommended Related Products

Impinj ItemSense™ Software provides access to item-level RFID data through enterprise applications by aggregating and transforming raw RFID data into real-time, business-driven Item Intelligence. ItemSense also centralizes, automates and simplifies the management and monitoring of RFID infrastructure. The functionality of ItemSense can fulfill many use cases.

Although the Impinj ItemSense Software is not required for purchase alongside the Impinj R420 RFID Reader, we highly recommend this product for the health of your reader system and the additional functionality offered. Please note that Impinj ItemSense Software will have a perpetual licencing model for a one-time fee per server and per reader/gateway. The first year of maintenance is included. Starting at year two customers may choose to subscribe for annual maintenance. Contact us today for more detailed information.

Recommended Professional Services

At atlasRFIDstore, we offer a full range of professional services to ensure that your RFID hardware runs at it's optimal capacity. Designed specifically for RFID readers, the following professional services will reduce the amount of time it takes to get your Impinj R420 RFID Reader ready for use. 

Note: All professional services offered by atlasRFIDstore are non-refundable once the service is complete. Contact Us today for more information.


Product Details

Air Interface Protocol:
GS1/EPCglobal UHF Class 1 Gen 2 (ISO 18000-6C)
Operating Frequency:
UHF (860 - 960 MHz), region dependent
Transmit Power (POE):
+10.0 to +31.5 dBm (EU1 limited to +30 dBm)
Transmit Power (External DC Power):
+10.0 to +32.5 dBm (Listed/Certified power supply) (EU1 limited to +31.5 dBm, JP2 limited to 30 dBm)
Max Receive Sensitivity:
-84 dBm
Max Read Distance:
Not published
Max Read Rate:
Up to 1,100 tag reads per second
Data Interface:
RS-232, ethernet
4 GPI optically isolated 3-30V/ 4 GPO optically isolated, 0-30V, non-isolated 5V, 100mA supply (DB-15)
Power Source (POE):
IEEE 802.3af
Power Source (External DC Power):
Listed/Certified power supply, AC-DC power supply rated for 24Vdc/2.1A
Antenna Ports:
4 RP-TNC female ports (connects to RP-TNC male), expandable to 32 antennas with Impinj Speedway Antenna Hub
190.5 x 175.3 x 30.5 mm (7.5 x 6.9 x 1.2 in)
0.7 kg (1.5 lbs)
IP Rating:
IP 52
Operating Temperature:
-20 ºC to +50 ºC (-4 ºF to +122 ºF)
Host API:
Java, .NET
Demo Software: