StarTech.com 4 Port RS232 Mini PCI Express Serial Card w/ 16650 UART

Add Four RS232 Serial Ports to an Embedded System through a mini PCI Express Slot
The MPEX4S952 4-Port RS232 Mini PCI Express Serial Card (16650 UART) turns a mini-PCIe slot into four RS232 (DB9) serial ports with data rates up to 921.6 Kbps - a cost-saving solution for adding serial support to embedded systems missing the functionality.
A native PCIe single-chip design enables you to take advantage of full PCI Express bus capability, by providing improved speed and reliability while reducing the load applied to the CPU by as much as 48% over conventional "bridge chip" serial cards .
Backed by a StarTech.com Lifetime Warranty and free lifetime technical support.
The StarTech.com Advantage
- The smallest form factor available, for internally adding serial ports to any embedded system
- Native single-chip design means up to 48% less load on your CPU which is critical for small embedded PCs that use low power, low MHz CPUs

Ports & interfaces
Host interface:	Mini PCI Express
Output interface:	Serial
Serial ports quantity:	4
Serial interface type:	RS-232
Design
Internal:
Product colour:	Green
Features
Chipset:	MosChip MCS9904CV-AA
FIFO (First In, First Out):	256 B
Operational conditions
Operating temperature (T-T):	0 - 55 °C
Storage temperature (T-T):	-20 - 85 °C
Operating relative humidity (H-H):	5 - 95%
System requirements
Windows operating systems supported:
Linux operating systems supported:
Weight & dimensions
Width:	10 mm
Depth:	51 mm
Height:	30 mm
Weight:	150 g
Packaging data
User guide:
Package width:	145 mm
Package depth:	212 mm
Package height:	40 mm
Package weight:	200 g
Logistics data
Harmonized System (HS) code:	84733020
Other features
Data transfer rate:	0.921 Mbit/s
Compatible operating systems:	Windows 7 (32/64bit)/ Vista(32/64)/ XP(32/64)/ CE 6.0 Windows Server 2008 R2/ 2003(32/64)/ 2000 Linux 2.6.x
Compliance industry standards:	PCI Express 1.1
Quantity outer carton:	50 pc(s)