MAX485 module RS485/TTL to RS-485 module 

• Supply Voltage: 5VDC
• RS485 IC: MAX485
• RS485 Mode: Half-Duplex
• RS485 Features: Lightning Protection / Good EMC Performance / Good EMI Resistance / Hot plugging without signal jamming
• RS485 Network Limit: 32 Devices Max
• Indication LEDs: 1x Power LED
• Operating Temperature Range: -40℃ to +85℃
• Header Pin Pitch: 2.54mm
• Dimensions: ~(44.6mm x 14.2mm x 14.3mm)