Weight & dimensions
Package weight	220 g
Package depth	141 mm
Depth	120 mm
Package height	28 mm
Width	130 mm
Weight	80 g
Height	19 mm
Package width	173 mm
Performance
Chipset	Moschip MCS9904CV-AA
Ports & interfaces
Internal	Yes
Output interface	Serial
Serial ports quantity	4
Host interface	PCIe
Other features
Compatible operating systems	Windows XP(32/64bit)/ Vista(32/64bit)/ 7(32/64bit), Windows Server 2003(32/64 bit), 2008 R2, Linux
Data transfer rate	0.128 Mbit/s
Mac compatibility	No
Operational conditions
Operating relative humidity (H-H)	5 - 85 %
Operating temperature (T-T)	0 - 50
Storage temperature (T-T)	-20 - 60
System requirements
Windows operating systems supported	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 7 Enterprise,Windows 7 Enterprise x64,Windows 7 Home Basic,Windows 7 Home Basi

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.