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Main image of M.2 (B+M Key) to 4-Port RS232 Serial Card + 1 Parallel Port Expansion Card, WCH384 Chip Industrial Controller Adapter PCIe M.2 to DB9 RS232 and DB25 Parallel Interface

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M.2 (B+M Key) to 4-Port RS232 Serial Card + 1 Parallel Port Expansion Card, WCH384 Chip Industrial Controller Adapter PCIe M.2 to DB9 RS232 and DB25 Parallel Interface

Item #: 9SIVU6VM1J7511
Mfr. Part #: TOLDB0FZCGK5S5
UNSPSC: 43201404

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M.2 (B+M Key) Expansion to RS232 & Parallel Ports Converts an M.2 (B+M Key) slot into 4 RS232 serial ports and 1 parallel port (DB25), allowing flexible connectivity for industrial equipment, CNC machines, and legacy printers.
High-Performance WCH384 Chipset Equipped with the WCH384 controller, ensuring stable communication, accurate signal transmission, and strong compatibility with Windows and Linux operating systems.
Wide Serial Configuration Support Supports data bits 5, 6, 7, 8, stop bits 1 or 2, and parity modes Even, Odd, Mark, Space, Noneideal for precise serial device communication and custom system integration.
Durable Industrial-Grade Design Designed for continuous operation with a temperature range of -40°C to 85°C, ensuring stable performance in harsh environments; compact PCB (main board 22×80mm / 0.87×3.15in, sub board 45×67mm / 1.77×2.64in).
Plug & Play, Broad Compatibility Compatible with Windows 7/8/10/11, Linux, and embedded systems. Perfect for appli

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M.2 (B+M Key) Expansion to RS232 & Parallel Ports Converts an M.2 (B+M Key) slot into 4 RS232 serial ports and 1 parallel port (DB25), allowing flexible connectivity for industrial equipment, CNC machines, and legacy printers.
High-Performance WCH384 Chipset Equipped with the WCH384 controller, ensuring stable communication, accurate signal transmission, and strong compatibility with Windows and Linux operating systems.
Wide Serial Configuration Support Supports data bits 5, 6, 7, 8, stop bits 1 or 2, and parity modes Even, Odd, Mark, Space, Noneideal for precise serial device communication and custom system integration.
Durable Industrial-Grade Design Designed for continuous operation with a temperature range of -40°C to 85°C, ensuring stable performance in harsh environments; compact PCB (main board 22×80mm / 0.87×3.15in, sub board 45×67mm / 1.77×2.64in).
Plug & Play, Broad Compatibility Compatible with Windows 7/8/10/11, Linux, and embedded systems. Perfect for applications such as POS terminals, industrial automation, serial monitoring, and parallel printer control.

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First Listed on Newegg	July 16, 2026

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Item#: 9SIVU6VM1J7511