研華PCM-3612I 4-port RS-232/422/485 PCI-104 Module

• Automatic RS-485 data flow control
• LED indicators: TX, RX
• Standard PC ports: COM1, COM2, COM3, COM4 compatible
• Supports Windows 7/8/10
• Linux driver
• Powerful and easy-to-use utility (ICOM Tools)
• 4-port RS-232/422/485 PCI-104 Module