30-Channel Ethernet Relay Module with PoE Compatible With_Raspberry Pi 3A Plus and simple to solder on

and simple to solder on most projects

and you're thinking "it would be really great if I could attach some lasers to them" and then you see these little laser diode modules: what great timing

1″ header pins and larger holes for terminal blocks offer several options for connecting to the board

Jumper wire x10

30-Channel Ethernet Relay Module with PoE Compatible With_Raspberry Pi 3A Plus and simple to solder onThis 30 channel relay module allows you to manage multiple devices simultaneously through a single Ethernet port, using Modbus RTU and Modbus TCP protocols. Its support for Power over Ethernet (PoE) means you can power the device directly through the Ethernet cable, simplifying installation and reducing the need for extra wiring. Additionally, the module comes housed in a durable ABS rail mount case for easy and secure installation in various