Product overview
The Xingkai ELRS RX is a 915MHz ExpressLRS nano receiver for integration into an FPV drone. Its black receiver hardware uses an SX1278+ESP8285 chip combination, with a T-shaped antenna and an IPEX1 antenna connector. The specified 11mm*22mm size defines its footprint for installation planning, while the 0.8g weight applies to the receiver alone. Electrical integration requires a 3.6V-5.5V supply, and the specified backhaul power is 100mW. Its product configuration is a receiver component.
Cross-brand linking depends on the transmitter module using the ELRS protocol and meeting the receiver’s pairing requirements. The transmitter and receiver must operate on the same frequency, so this 915MHz unit requires a matching frequency configuration. Their AU, EU, or FCC firmware standard must also agree; the stated FCC 3.0.0 transmitter example requires receiver firmware of FCC 3.0.0 or above. Finally, both devices must either have no binding password or share the same password.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer | Xingkai Technology |
| Model | ELRS RX |
| Product name | ExpressLRS Receiver |
| Frequency | 915MHz |
| Antenna | T-shaped |
| Chip | SX1278+ESP8285 |
| Color | Black |
| Backhaul power | 100mW |
| Input voltage | 3.6V-5.5V |
| Antenna connector | IPEX1 |
| Weight | 0.8gReceiver only. |
| Size | 11mm*22mm |
| Protocol and frequency matching | Cross-brand linking requires ELRS transmitter modules operating on the same frequency as the receiver.For linking with an ELRS transmitter module. |
| Firmware standards and matching | AU, EU, and FCC firmware standards must match between transmitter module and receiver. With FCC 3.0.0 transmitter-module firmware, the receiver requires FCC 3.0.0 firmware or above.For linking with an ELRS transmitter module; the stated firmware example uses FCC 3.0.0. |
| Binding password | Both devices must have no binding password, or both must use the same password.For linking with an ELRS transmitter module. |



