Mini PCIe to Rs232 QUAD Port Expansion Module

◎ PCI-Express x1 Lane Bus Interface
◎ Mini PCIe to 4 port RS-232
◎ x 1 Link, Dual Simplex, 2.5Gbps in each direction
◎ Up to 25Mbps serial data rate
◎ Data read/write 32-bit operation
◎ Industrial design, manufactured in Taiwan


The. MS-400 is rugged Mini PCIe modules that are ideal for adding extra serial port capabilities to any system with minimal increase in overall system size and power consumption. The wide operating temperature and latching connector and cabling solution allow these modules to be used in harsh environments. Compatibility with a large variety of popular operating systems allows these boards to be easily integrated into a wide array of new and existing systems.


Module Type


mPCIe to quad port RS232 Module

Form Factor


Mini PCIe full size

Input interface


PCI Express 2.0

Output Interface



Output Connector


One 2*10 pin box header

Two Cable with 2 *DB9 connector

Power input


On board 3.3V



51 x 30(mm)

Transfer speed


Data read/write 32-bit operation , up to 25 Mbps serial data rate

Compatible Operating System



Windows 7、Windows 8.1、Windows 10

Windows Server 2003、Windows Server 2008

Working Temperature



Ordering Information:




MiniPCIe to 4 ports RS232

w/25cm 2 ports DB9 cable x2

Related Products