E18-MS1PA2, E18-MS1PA2-IPX, E18-2G4Z27SI or E18-TBH-28 Test board – Zigbee Hobbyist. Rock Pi 4 SBC
E18-MS1PA2-PCB Zigbee IO CC2530 PA 2.4Ghz 100mW PCB Antenna IoT Uhf Wireless Transceiver Transmitter and Receiver RF Module - AliExpress
Chengdu Ebyte Electronic Technology Co., Ltd. - E18-MS1PA2-PCB is small-sized 2.4GHz ZigBee wireless module, which is designed and produced by Chengdu Ebyte. SMD type with pcb antenna, with a transmission power of