The Impinj Speedway R420 is a robust and reliable RAIN RFID fixed reader designed to deliver exceptional item visibility across diverse applications. With four antenna ports and support for up to 32 read zones, this reader provides the flexibility and performance required for inventory management, asset tracking, and supply chain solutions. Featuring Impinj's advanced Autopilot technology, the R420 automatically optimizes RF performance in dynamic environments.
Retail inventory management
Warehouse and logistics tracking
Manufacturing process control
Asset management systems
Library and document tracking
√ Industry-Leading Sensitivity: 93dBm reception enables reliable reads of small/metallic tags in challenging environments
√ Edge Intelligence: Local data processing reduces cloud dependency for real-time analytics
√ Enterprise Security: Secure boot chain + 802.1x port authentication + firmware encryption
√ Developer Ecosystem: Native MQTT/REST APIs + Octane SDK/LLRP toolkits (.NET/Java/C++)
RF Performance
Frequency Ranges:
FCC: 902-928 MHz
EU1: 865-868 MHz
GX1: 902-928 MHz
JP2: 916-921 MHz
Gen2 Reader Modes: 10 supported modes
Return Loss: Minimum 10 dB
Antenna Impedance: 50 ohm
Connectivity & Interfaces
Network: Gigabit Ethernet
USB Ports: 1 host, 1 device
GPIO: Supported via accessory
Management Console: RS-232 via RJ-45
Environmental Specifications
Humidity: 5% to 95% non-condensing
Ingress Protection: IP52 rated
Shock & Vibration: MIL-STD-810G compliant
| Category | Specifications |
|---|---|
| Air Interface Protocol | RAIN RFID / EPC global UHF Gen2 (ISO 18000-6C) |
| Antenna Ports | 4 |
| Max Read Zones | 32 (with antenna hubs) |
| Max Read Rate | Up to 1,100 tags per second |
| Transmit Power | Max 32.5 dBm (FCC, GX1, GX2, GX3) |
| Receive Sensitivity | Typical: -84 dBm |
| Processor | Single-core 400 MHz |
| Memory | 256 MB RAM, 32 MB CAP |
| Network Connectivity | 10/100BASE-T Ethernet |
| Power Options | IEEE 802.3af PoE or AC-DC power supply |
| Operating Temperature | -20°C to +50°C |
| Regulatory Compliance | FCC, CE, RoHS, and regional certifications |
Impinj Speedway Connect - Reader management and configuration
Impinj Octane SDK - Application development (.NET and Java)
Impinj ItemTest - Performance testing and optimization
LLRP Toolkit - Protocol implementation resources