CH340 Module CH340G Serial Port Upgrade Module USB To TTL Small Board With Shell USB To STC Download Cable
PoE Switch Manufacturer 120W Unmanaged 48v 10/100mbps PoE Ports IEEE 802.3 Af/at Ethernet Switch 8 Port PoE Switch For IP Camera
LoRa611Pro 4Km 100mW Sx1276 Chip Long-Range Transmission 128-bit Encryption MESH Free Networking Industrial-grade Serial Port
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