Add 4 RS232 serial ports to any PC using a single PCI Express expansion slotThe PEX4S553B 4-Port PCI Express Serial Card (with breakout cable) lets you add 4 RS232 serial ports using a single PCIe expansion slot with an included 1-to-4 cable enabling you to add 4 serial ports to a single low profile slotThe serial card features a native single-chip design that provides optimum reliability and speed reducing the CPU load by up to 48 over conventional bridge-chip serial cards - a cost-effective solution for connecting legacy serial devices to PCIe-enabled computersThe multi-port serial adapter includes both full profile and low profilehalf-height brackets for compatibility with standard and small form factor computers and is compatible with a broad range of operating systems including Windows Linux and MAC OSThis product is a replacement for our PEX4S552B cardBacked by a StarTechcom lifetime warranty and free lifetime technical supportThe StarTechcom Advantage- Lower CPU load of native single-chip single lane PCI Express design ensures optimal system performance (up to 48 less CPU load)- Includes both standard and low profilehalf-height brackets which makes this the perfect card for any application including small form factor embedded applications- Breakout cable design means that only one expansion slot is needed to add 4 additional serial ports to any systemSpecificationsPorts &38; interfacesInternalYesOutput interfaceSerialSerial interface typeRS-232Serial ports quantity4Host interfacePCIeTechnical detailsChipsetASIX Moschip MCS9904CV-AAFIFO (First In First Out)256 BPerformanceData bits5678Baud rate2304 KbitsChipsetASIX Moschip MCS9904CV-AAFIFO (First In First Out)256 BProduct colourBlackCertificatesCertificationREACH CERoHS complianceYesColourProduct colourBlackDesignInternalYesProduct colourBlackCertificationREACH CERoHS complianceYesFeaturesData bits5678Baud rate2304 KbitsChipsetASIX Moschip MCS9904CV-AAFIFO (First In First Out)256 BParity bitEvenMarkNOddOperational conditionsOperating temperature (T-T)0 - 70 &176;CStorage temperature (T-T)-40 - 85 &176;COperating relative humidity (H-H)5 - 85System requirementsWindows operating systems supportedWindows 10Windows 10 EducationWindows 10 Education x64Windows 10 EnterpriseWindows 10 Enterprise x64Windows 10 HomeWindows 10 Home x64Windows 10 IOT CoreWindows 10 ProWindows 10 Pro x64Windows 10 x64Windows 2000Windows 2000 ProfessionalWindows 7Windows 7 EnterpriseWindows 7 Enterprise x64Windows 7 Home BasicWindows 7 Home Basic x64Windows 7 Home PremiumWindows 7 Home Premium x64Windows 7 ProfessionalWindows 7 Professional x64Windows 7 StarterWindows 7 Starter x64Windows 7 UltimateWindows 7 Ultimate x64Windows 7 x64Windows 8Windows 8 EnterpriseWindows 8 Enterprise x64Windows 8 ProWindows 8 Pro x64Windows 8 x64Windows 81Windows 81 EnterpriseWindows 81 Enterprise x64Windows 81 ProWindows 81 Pro x64Windows 95Windows 98SEWindows CEWindows VistaWindows Vista BusinessWindows Vista Business x64Windows Vista EnterpriseWindows Vista Enterprise x64Windows Vista Home BasicWindows Vista Home Basic x64Windows Vista Home PremiumWindows Vista Home Premium x64Windows Vista UltimateWindows Vista Ultimate x64Windows Vista x64Windows XPWindows XP HomeWindows XP Home x64Windows XP ProfessionalWindows XP Professional x64Mac operating systems supportedMac OS X 1010 YosemiteMac OS X 103 PantherMac OS X 104 TigerMac OS X 105 LeopardMac OS X 106 Snow LeopardMac OS X 107 LionMac OS X 108 Mountain LionMac OS X 109 MavericksLinux operating systems supportedYesServer operating systems supportedWindows Server 2003Windows Server 2008 R2Windows Server 2012Windows Server 2012 R2Windows Server 2016Windows Server 2019Other operating systems supportedDOSWindows Embedded POSReady 2009Windows Embedded Standard 2009Windows XP EmbeddedWeight &38; dimensionsWidth12 mmDepth805 mmHeight68 mmWeight239 gPackage width208 mmPackage depth145 mmPackage height41 mmPackage weight343 gPackaging dataMounting brackets includedYesManualYesDrivers includedYesPackage width208 mmPackage depth145 mmPackage height41 mmPackage weight343 gCables includedSerialPackaging contentMounting brackets includedYesManualYesDrivers includedYesCables includedSerialOther featuresChipsetASIX Moschip MCS9904CV-AA