radiomasterRadioMaster
XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver
Manufacturer part no. HP0157.XR4
$34.99≈ 30.32 €
Price summary
Listed by radiomaster at €30.32. Delivered to France, including shipping, VAT and any customs duty, it comes to about €54.38. Prices last checked on 2026-09-16.
Delivered cost is an estimate for a single item shipped to mainland France; the seller's checkout is authoritative.
In stock
Estimated landed cost
| Item | €30.32 |
|---|---|
| Shipping | €15.00 |
| VAT (20%) | €9.06 |
| Total delivered | €54.38 |
Estimate for a single item delivered to mainland France, shipped from outside the EU: customs duty and clearance fees may apply and are charged by the carrier.
Specifications (automatically extracted)
Mechanical
| Weight | 100 g |
Description
Introducing the XR4 XrossBand Receiver – The Pinnacle of compact Dual-Band Performance The XR4 Receiver is a cutting-edge true diversity dual-band receiver featuring dual LR1121 RF transceivers, designed to leverage the advanced ExpressLRS Gemini Xrossband protocol (Gem-X). It seamlessly supports both the 2.4GHz and Sub-G 900MHz bands, and its dual T-type antennas provide superior reception sensitivity and connection stability for optimal performance. Built with two independent RF circuits, the XR4 offers versatile operation modes, allowing you to switch between Gemini single-frequency or Xrossband dual-band modes, and can be tailored to your specific needs. The integrated Wi-Fi module simplifies firmware updates and configuration via a user-friendly WebUI on your PC or mobile device. With ultra-low latency and a high refresh rate, the XR4 excels in delivering a stable, rock-solid RF link, even in demanding or interference-prone environments. Its compact, lightweight design ensures reliable connectivity in critical situations where every signal matters. The XR4 offers the most secure and robust RF link available, providing unbeatable reliability even under the toughest conditions. For more details and support, visit expresslrs.org. Features True Diversity & Dual-Band Unmatched reliability with ExpressLRS Gemini Xrossband Compatible with ExpressLRS 2.4GHz, Sub-G 900MHz, Gemini & Gemini Xrossband (Gem-X) ESP32D4 high-performance MCU Twin Semtech LR1121 Transceiver Secondary UART port for advanced functionality Castled pads for easy soldering Specification Item: XR4 Gemini Xrossband Dual-Band Receiver MCU: ESP32D4 RF Chip: LR1121 x 2 RF connector: IPEX-1 X 2 Antenna: Dual-Band T Antenna x 2 (Included) Frequency Range: 2.4GHz / Sub-G 900MHz Telemetry Power: 100mw Maximum receive refresh rate: DK500Hz / K1000Hz Minimum receiver refresh rate: 50Hz Working voltage: DC 4.5 - 8.4V Weight: 1.7g (without antenna) Dimension: 22mm * 18mm * 4mm Firmware Version: ExpressLRS v3.5.1
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