BT840NE, nRF52840 + nRF21540 BLE 5.3 module. Cortex M4F MCU, 64 MHz. No external component is required to minimize host PCB area. Max. transmission power is +20.6 dBm conducted, +26.6 dBm radiated. Integrated high performance PCB antenna and an u.FL connector for external antenna

The price is $9.91 each at 1K pcs.