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Diamond Point International

Innodisk EMP2-X404 - Mini PCI Express Quad Port Serial Card

Adds Four RS-232, RS422 or RS485 Interfaces via Mini PCIe Socket


The EMP2-X404 is a rugged, low cost 4-port high speed PCIe MiniCard module that is ideal for serial I/O expansion in embedded and OEM applications.

It offers four RS-232/422/485 serial ports in the PCIe MiniCard full size form factor with an extended operating temperature of up to -40°C to +85°C. Data rates on every port are up to 25Mbps.



Interface4x RS-232/422/485, each port jumper configured
Supports 485 HD (Half Duplex) and 485 FD (FullDuplex)
16C550 compatible. 256-byte FIFOs
256-byte TX/RX FIFO
Termination Resistor and 5V/12V output by jumper setting on miniPCI-e board
Flexible design with dual DB-9 cables.
Data RatesUp to 25 Mbps serial data rate
Address/IRQPlug and play
OtherESD protection: ESD up to 15KV(Electrostatic Discharge) protection circuit to prevent system damage


ExpansionPCIe MiniCard full size format
PCIe 2.0 compliant
Electrical0.5W (3.3V x 150mA)
Mechanical30 mm x 50.9 mm x 6.1 mm
Conformal CoatingOn request
SoftwareDriver supports Win 7 (32 & 64 bit), Win 8/8.1(32 & 64 bit)
Linux Kernel 3.11 (Linux source for modification on request)
TemperatureTemperature range (operation): -40 to +85°C
Temperature range (storage): -55 to +95°C
Vibration5G @7~2000Hz
Shock50G @ 0.5ms
Warranty3 Years

Ordering Details

mPCIe to quad RS-232/422/485 Module, -40 to 85°C operation

Supplied with two cables (each cable has two DB9 connectors)