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StarTech 4 Port RS232 Mini PCI Express Serial Card w/ 16650 UART
SKU# AB86671, Model# MPEX4S552


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SKU # AB86671 | Model # MPEX4S552 | Brand StarTech

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StarTech 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

Manufacturer Warranty: Limited Product Lifetime Warranty
Manufacturer Contact Info:,

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 Lifetime Warranty and free lifetime technical support.

Packaging Information
Shipping (Package) Weight0.2 kg [0.4 lb]
Data Bits5, 6, 7, 8
FIFO256 Bytes
Flow ControlNone, Xon/Xoff, RTS/CTS
Max Baud Rate921.6 Kbps
ParityNone, Odd, Even, Space, Mark
Serial ProtocolRS-232
Stop Bits1, 1.5, 2
Physical Characteristics
Product Height30 mm [1.2 in]
Product Length51 mm [2 in]
Product Weight150 g [5.3 oz]
Product Width10 mm [0.4 in]
OS CompatibilityWindows® DOS, 95, 98SE, 2000, CE 5.0/6.0, Embedded System 2009, POS Ready 2009, XP Embedded, XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Mac OS® 10.4 to 10.10
Linux 3.5.x to 4.11.x LTS Versions Only
What's in the Box
Included in Package4 Port Mini-PCIe Serial Card
DB9 ribbon cable
Driver CD
Instruction Manual
Port StyleDongle (Included)
Industry StandardsPCI Express Base Specification, Revision 1.1
Chipset IDASIX - MCS9904CV-AA
Card TypeEmbedded
Bus TypeMini PCI Express
Storage Temperature-20°C to 85°C (-4°F to 185°F)
Operating Temperature0°C to 55°C (32°F to 131°F)
Humidity5~95% RH
External PortsDB-9 (9 pin, D-Sub) Male
Connector Type(s)Mini PCI Express x1 (52 pin) Male

SKU # AB86671 | Model # MPEX4S552

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