Expands 1 RS-232 com ports for your system
High Speed Baud Rate up to 921.6Kbps
USB 1.0/1.1 compliant, USB 2.0 Full Speed compatible
12Mbps USB Data Rate
Transmit and Receive LED supports
5KV Optical Isolation Protection
Built-in 15KV ESD protection for all RS-232 port
Supports Industrial Specification
TX buffer 128 bytes and RX buffer 256 bytes
Supports Microsoft Windows, Linux, and MAC drivers
Expands 1 RS-232 com ports for your system
High Speed Baud Rate up to 921.6Kbps
USB 1.0/1.1 compliant, USB 2.0 Full Speed compatible
Built-in 15KV ESD protection for all RS-232 port
Supports Industrial Specification
TX buffer 512 bytes and RX buffer 512 bytes
Supports Microsoft Windows, Linux, and MAC drivers
Expands 1 RS-232 com ports for your system
High Speed Baud Rate up to 921.6Kbps
USB 1.0/1.1 compliant, USB 2.0 Full Speed compatible
12Mbps USB Data Rate
Transmit and Receive LED supports
Built-in 15KV ESD protection for all RS-232 port
Supports Industrial Specification
TX buffer 128 bytes and RX buffer 256 bytes
Supports Microsoft Windows, Linux, and MAC drivers
Non-Power Technology
Full-duplex Data Communication
Pure Hardware Solution-real time Data Transfer
Transfer data or files between PCs. Equipments
One CAT-5 cable extension
Industrial Standard
Compatible with all RS-232 protocols
No Software Configuration
Built-in 15KV ESD protection for all Serial Port and RJ45 Port Protection
Supports Industrial Specification
No Driver Needs
High Speed Baud Rate up to 921.6Kbps
Built-in Terminator 120 ohm for DIP Switch Setting
Max 10 Device connectivity for 4 Wire RS-485(RS-422 Multi-Drop) Mode
Max 32 Device Connectivity for RS-485 Mode
Communication status can be monitored through LED
3KV Optical Isolation Protection
600W Surge Protection
Built-in 15KV ESD protection for all Serial Port and RS-422/485 Signals Protection
Supports Industrial Specification
No Driver Needs
Transmission speed up to 115.2 kbps
Built-in microprocessor
Watchdog timer function included
All communication setups stored in EEPROM
Power and data flow indicator for troubleshooting
Built-in Terminator 120 ohm for DIP Switch Setting
Addressable and non-addressable mode configurable
Max 10 Device connectivity for 4 Wire RS-485(RS-422 Multi-Drop) Mode
Max 32 Device Connectivity for RS-485 Mode
Communication status can be monitored through LED
3KV Optical Isolation Protection
600W Surge Protection
Built-in 15KV ESD protection for all Serial Port and RS-422/485 Signals Protection
Supports Industrial Specification
3KV Isolation
2 way power supply
Full-duplex Data Communication
Pure Hardware Solution-real time Data Transfer
Transfer data or files between PCs. Equipments
Industrial Standard
Compatible with all RS-232 protocols
No Software Configuration
Built-in 15KV ESD protection for all Serial Port
Supports Industrial Specification
No Driver Needs
Optical fibers enable transmission of up to 2 km
Half/Full-duplex, bidirectional transmission mode
Support for ring-mode
Support for Redundant System
Avoid lightning strikes and EMI/RFI
Prevents damage from electrostatic discharge
Stable and error-free data transmission
Automatic internal RS-485/RS485 4W bus supervision
No external flow control signals required for RS-485/RS485 4W
Transient suppression and over-current protection onRS232/422/485 data lines
LED for power and data flow indicatio
DIP SW Function Setting
Optical fibers enable transmission of up to 2 km
Half/Full-duplex, bidirectional transmission mode
Support for ring-mode
Support for Redundant System
Avoid lightning strikes and EMI/RFI
Prevents damage from electrostatic discharge
Stable and error-free data transmission
Automatic internal RS-485/RS485 4W bus supervision
No external flow control signals required for RS-485/RS485 4W
Transient suppression and over-current protection on
RS-232/422/485 data lines
LED for power and data flow indicatio
DIP SW Function Setting
This article describes the 8-Port RS232 M.2 B/M Key Card, a solution for connecting multiple RS232 serial devices to modern computers via the M.2 slot. It covers the card’s features (multiple ports, M.2 compatibility, high-speed communication), applications (industrial automation, POS systems, networking, legacy system integration), and on-page optimization strategies (keyword integration, compelling meta descriptions, structured content) to improve search engine visibility and attract potential customers. It emphasizes the card’s role in bridging the gap between legacy RS232 devices and modern systems.
Expands 1 RS-232 com ports for your system
High Speed Baud Rate up to 921.6Kbps
DB9M pin 9 output 5V(unselectable) – Max current USB 5V
USB 1.0/1.1 compliant, USB 2.0 Full Speed compatible
12Mbps USB Data Rate
Transmit and Receive LED supports
Built-in 15KV ESD protection for all RS-232 port
Supports Industrial Specification
TX buffer 128 bytes and RX buffer 256 bytes
Supports Microsoft Windows, Linux, and MAC drivers
Expands 1 RS-232 or RS422 or RS485 com ports for your system
High Speed Baud Rate up to 921.6Kbps
USB 1.0/1.1 compliant, USB 2.0 Full Speed compatible
12Mbps USB Data Rate
Transmit and Receive LED supports
Built-in 15KV ESD protection for all RS-232 port
Supports Industrial Specification
TX buffer 128 bytes and RX buffer 256 bytes
Supports Microsoft Windows, Linux, and MAC drivers
RS422/485 Signal 600W Surge Protection
Max 10 Device Connectivity for RS422 Multi-Drop Mode
Max 32 devices connectivity for RS485 mode
Easy to use setting Dip Switch for selecting RS232/422/485 mode
Automatic toggling by hardware RS485 2W and RS485 4W(RS422 Multi-Drop mode)
Expands 2 RS-232 or RS422 or RS485 and 2 port RS422 or RS485 with 3KV Isolation 600W Surge com ports for your system
High Speed Baud Rate up to 921.6Kbps
USB 1.0/1.1 compliant, USB 2.0 Full Speed compatible
480 Mbps USB Data Rate
Transmit and Receive LED supports
Built-in 15KV ESD protection
3KV Optical Isolation Protection
600W Surge Protection
Supports Industrial Specification
TX buffer 2K bytes and RX buffer 2K bytes per Channel
Supports Microsoft Windows, Linux, and MAC drivers
RS422/485 Signal 600W Surge Protection
Max 10 Device Connectivity for RS422 Multi-Drop Mode
Max 32 devices connectivity for RS485 mode
Easy to use setting Dip Switch for selecting RS232/422/485 mode
Automatic toggling by hardware RS485 2W and RS485 4W(RS422 Multi-Drop mode)
Expands 2 RS-232 or RS422 or RS485 com ports for your system
High Speed Baud Rate up to 921.6Kbps
USB 1.0/1.1 compliant, USB 2.0 Full Speed compatible
480 Mbps USB Data Rate
Transmit and Receive LED supports
Built-in 15KV ESD protection
Supports Industrial Specification
RS422/485 Signal 600W Surge Protection
Max 10 Device Connectivity for RS422 Multi-Drop Mode
Max 32 devices connectivity for RS485 mode
Easy to use setting Dip Switch for selecting RS232/422/485 mode
Automatic toggling by hardware RS485 2W and RS485 4W(RS422 Multi-Drop mode)
Supports Industrial Specification
TX buffer 4K bytes and RX buffer 4K bytes per Channel
Supports Microsoft Windows, Linux, and MAC drivers
Expands 2 RS-232 com ports for your system
High Speed Baud Rate up to 921.6Kbps
USB 1.0/1.1 compliant, USB 2.0 Full Speed compatible
480 Mbps USB Data Rate
Transmit and Receive LED supports
Built-in 15KV ESD protection for all RS-232 port
Supports Industrial Specification
TX buffer 4K bytes and RX buffer 4K bytes per Channel
Supports Microsoft Windows, Linux, and MAC drivers
Expands 4 RS-232 com ports for your system
High Speed Baud Rate up to 921.6Kbps
USB 1.0/1.1 compliant, USB 2.0 Full Speed compatible
480 Mbps USB Data Rate
Transmit and Receive LED supports
Built-in 15KV ESD protection for all RS-232 port
Supports Industrial Specification
TX buffer 2K bytes and RX buffer 2K bytes per Channel
Supports Microsoft Windows, Linux, and MAC drivers