4 Channel Relay Module, Industrial Grade Optocoupler Isolation Guide Rail Mount USB TTL Control Relay, USB CDC Class Virtual Serial Port Protocol or UART Protocol
| Country | USA |
| Brand | FMGDJJK |
| Manufacturer | marketfeiyang |
| Binding | Apparel |
| ItemPartNumber | marketfeiyang |
| Model | marketfeiyang |
| Color | 110V |
| Size | One Size |
| UnitCount | 1 |
| EANs | 7509150178889 |
| ReleaseDate | 0000-00-00 |