Inpinj Speedway R420
Fixed UHF RFID Reader/Writer

The Impinj R420 Reader delivers item visibility with the performance, quality, and reliability necessary for robust solutions. With its compact form factor and support for new features such as Power over Ethernet (PoE) and Sierra Wireless cellular modem connectivity, the Speedway Revolution range deliver increased application and deployment flexibility. PoE simplifies deployment and dramatically reduces cost by eliminating the need for AC outlet installation at read points. Made possible by the Speedway Revolution’s low power consumption, PoE reduces operating costs as well as green house gas (GHG) emissions without compromise. Speedway Revolution delivers the full 30 dBm of transmit power and the highest read performance available—even with PoE operation.

RF interference, tag quantity, ambient RF noise, and even building materials near an RFID installation all affect system performance. Most users configure their readers for worst case scenarios, often compromising best performance in the process. With the Speedway Revolution’s Autopilot, innovative firmware features work together, automatically optimising the reader operation to its environment—delivering peak performance at all times. The Speedway Revolution senses levels of RF noise and interference, automatically selecting the appropriate settings. Low duty cycle reduces RF interference, power consumption, and energy costs. The Speedway Revolution only transmits when tags are in the field, helping to clear the air of unnecessary RF noise. Dynamic antenna switching improves throughput and helps the reader work more efficiently. Speedway Revolution senses where tags are in the field and automatically focuses more time on the antennas with the largest tag populations in view. For example, if a low-height pallet follows taller pallets through a portal, the Speedway Revolution reduces time spent on antennas in the upper positions.

And the Speedway Revolution improves upon the advanced hardware capabilities which 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.


  • UHF RFID fixed mount reader
  • Power Over Ethernet (POE)
  • The R420 is Australian 4W Compliant 920-926 MHz
  • Integrated General Purpose Input Output (GPIO) ports for detectors and signaling
  • Support for upto 32 Antennas
  • Internal filtering to reduce network traffic
  • RAIN RFID compliant reader
  • Rugged housing
  • Autoset continuous read optimisation tools
  • 12 Month Return to Base Warranty with extension options


  Physical Characteristics
Height 175 mm
Width 193 mm
Depth 30 mm
Weight 670g
Enclosure Folded Steel
  Environmental Specifications
Operating Temperature -20°C to 50°C
Storage Temperature -20°C to 50°C
Humidity 5 to 95% Non-Condensing
Ingress Protection IP52
Power Input PoE (803.2af Compliant) or 24VDC @ 800mA
24V/DC (Locking Connector)
Power Consumption Upto 32.5 Watts
Frequency Range (Australia) 920-926MHz (4W EIRP)
Antenna Connections 4 x TNC Bulkhead Jack, Reverse Polarity
Power Output 10 to 30dBm with POE, 10 to 32.5dBm with 24V/DC External Power Supply
Operation/Application Support EPCglobal LLRP
USB HID Keyboard Output
Octane Embedded Development Tools (ETK) for Jessie (Debian)
Linux Shell Command Interface
Memory 32MB Sysatem RAM, 16MB Available for Working Applications
Communication Ethernet, USB (HID Keyboard adn Virtual Com), RS232 (For Host Configuration Only)
GPIO 4 inputs, optically isolated 3-30V; 4 outputs, optically isolated, 0-30V, non-isolated 5V, 100mA supply (DB-15)
Ordering Information and Pricing
Part Number Model Number Description RRP
[A] Impinj Speedway Revolution R420 Fixed RFID Reader
IPJ-REV-R420-GX32M1 R420-GX32M1 Speedway Revolution 4 port Fixed Reader $3,817.00 C3
Includes Power Supply
[B] GPIO Box
IPJ-A5000-000 Speedway Revolution GPIO Box $1,232.00 C3
[C] Antenna Cables
Impinj Reader to Antenna with SMA Jack (F)
2-9003-010-7 CA9003-1 Coax Cable, RG58, SMA - RevP TNC 1m $146.30 U
2-9003-020-4 CA9003-2 Coax Cable, RG58, SMA - RevP TNC 2m $59.40 U
2-9003-030-5 CA9003-3 Coax Cable, RG58, SMA - RevP TNC 3m $150.70 U
2-9003-040-9 CA9003-4 Coax Cable, RG58, SMA - RevP TNC 4m $88.00 U
2-9003-050-1 CA9003-5 Coax Cable, RG58, SMA - RevP TNC 5m $155.10 U
2-9003-060-0 CA9003-6 Coax Cable, RG58, SMA - RevP TNC 6m $116.60 U
2-9003-080-2 CA9003-8 Coax Cable, RG58, SMA - RevP TNC 8m $127.60 U
UMD Custom Cable Assembly Service
[D] Services