If you are passionate about computers and electronics, you like to be up to date in technology and not miss any details, buy Startech PEX2S553 USB Hub at the best price.Color: GreenConnections: RS232RS232 x 2Molex 4 PIN x 1PCIeType: AdapterOperating System: LinuxConnection: RS 232Certificate: RoHSWeight: 60g height: 32 cmAdd 2 RS-232 serial ports to your standard or compact chassis computer through a PCI Express expansion slotThe PEX2S553 serial port PCI card allows you to convert a PCI Express slot into 2 RS232 serial ports (DB9). Based on a unique native chip design (does not use any bridge chip), This 2-port serial adapter card allows you to take advantage of the full potential of PCI Express (PCIe) and reduce the load applied to the CPU by 48% compared to conventional serial cards. The adapter card with RS232 serial port (PEX2S553) It is compatible with a wide range of operating systems, including Windows 2000/XP/2003/Vista/Windows 7/Server 2008 R2 (32 and 64 bit), Linux Kernel 2.6.11 to 4.11x, as well as MAC OS Native Express with a single chip and a single lane for optimal performance - Includes standard and low profile/half-height brackets that ensure installation in any system - Easy to install and use with detailed instructions that save time and effort Host interface: PCIe output interface: Standard Expansion Card Standard: PCIe 1.0Serial port: 2Interface serial type: RS-232Power Connectors (4 pin) peripherals (Molex): 1Internal: YesProduct color: GreenCertification: CE, FCC, REACH Integrated circuit: ASIX - MCS9922CV-AATransmission speed: 460.8 Kbit/sPEPS (First In, First Out): 128 BOperating temperature range: -10 - 80 °CStorage temperature range: -20 - 100 °CRelative humidity range for operation: 5 - 85%Supported Windows operating system: 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 IOT Core, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows ws 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 s 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64, Windows 95, Windows 98SE, Windows CE, Windows Vista, 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 Vista x64,Windows XP Home,Windows XP Home x64,Windows XP Professional,Windows XP Professional x64MAC operating system supported: Mac OS X 10.10 Yosemite, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS: YesSupported server operating system: Windows Server 2003,Windows Server 2008 R2,Windows Server 2012,Windows Server 2012 R2,Windows Server 2016,Windows Server 2019Other supported operating systems: DOS,Windows Embedded POSReady 2009,Windows Embedded Standard 2009,Windows XP EmbeddedSustainability certificates: RoHS Width: 120mmDepth: 105mmHeight: 20mmWeight: 61g Drivers included: YesUser manual: YesPackage width: 145mmPackage depth: 175mmPackage height: 32mmPackage weight: 151 gQuantity per box: 75 piece(s)Master carton width: 355mm case length: 690 mmHeight of main box: 310 mm Claims will only be attended to up to 5 days after your order is received