Budget RX-only dongle. Does NOT reach 2.4 GHz, so it cannot receive BLE, Wi-Fi or Zigbee, but it is a fine cheap receiver for sub-GHz, LoRa and ADS-B (1090 MHz).
End of line since May 2026: RTL-SDR Blog states Rafael Micro no longer produces the R828D and the chip stockpile is exhausted. The R828S-based V4L (Lite) replacement has been on sale in limited stock since August 2026. Source · checked 2026-09-28