PEX4S553 | Startech 4 Port Native PCI Express RS232 Serial Adapter Card

Ports & interfaces
Internal	Yes
Host interface	PCIe
Output interface	Serial
Serial interface type	RS-232
Serial ports quantity	4
Performance
Data bits	5, 6, 7, 8
Baud rate	128 Kbit/s
Chipset	ASIX - MCS9904CV-AA
FIFO (First In, First Out)	256 B
Harmonized System (HS) code	84733020
Design
Mean time between failures (MTBF)	26280 h
Internal	Yes
Certification	CE, FCC, REACH
Features
Data bits	5, 6, 7, 8
Baud rate	128 Kbit/s
Chipset	ASIX - MCS9904CV-AA
FIFO (First In, First Out)	256 B
Harmonized System (HS) code	84733020
Operational conditions
Operating temperature (T-T)	0 - 50  Â°C
Storage temperature (T-T)	-20 - 60  Â°C
Operating relative humidity (H-H)	5 - 85%
Technical details
Harmonized System (HS) code	84733020
Sustainability certificates	RoHS
System requirements
Windows operating systems supported	Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 Pro, Windows 10 Pro x64, Windows 2000, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64, Windows 95, Windows 98SE, Windows Vista Business, Windows Vista Business x64, Windows Vista Enterprise, Windows Vista Enterprise x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64
Mac operating systems supported	Mac OS X 10.10 Yosemite, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Linux operating systems supported	Yes
Server operating systems supported	Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019
Other operating systems supported	Windows Embedded POSReady 2009, Windows Embedded Standard 2009, Windows XP Embedded
Weight & dimensions
Width	130 mm
Depth	120 mm
Height	19 mm
Weight	74 g
Package width	141 mm
Package depth	170 mm
Package height	30 mm
Package weight	230 g
Packaging data
Mounting brackets included	Yes
Manual	Yes
Drivers included	Yes
Package width	141 mm
Package depth	170 mm
Package height	30 mm
Package weight	230 g
Quantity	1
Packaging content
Mounting brackets included	Yes
Manual	Yes
Drivers included	Yes
Quantity	1
Other features
Chipset	ASIX - MCS9904CV-AA

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Add 4 RS-232 serial ports to your standard or small form factor computer through a PCI Express expansion slot
The PEX4S553 4-Port Native PCI Express RS232 Serial Adapter Card with 16550 UART lets you add 4 RS232 (DB9) serial ports, using a single PCI Express expansion slot.
Based on a native single-chip design, this 4-port serial adapter card allows you to harness the full capability offered by PCI Express (PCIe), while reducing the load applied to the CPU by as much as 48% over conventional bridge-chip serial cards.
The RS232 Serial Adapter Card includes 4 half-height/low-profile brackets, allowing the card to be installed into almost any PC case, regardless of form factor.
Backed by a StarTech.com Lifetime warranty and free lifetime technical support.
The StarTech.com Advantage
- Native single-chip, single lane PCI Express chipset delivers true PCIe performance, up to 48% more efficient than bridge chip designs
- Standard and low profile/half-height brackets included to ensure fitment in any system