Startech 2-port PCI Express RS232 Serial Adapter Card (PEX2S553)

Startech 2-port PCI Express RS232 Serial Adapter CardThe PEX2S553 PCI Express serial card lets you turn a PCI Express slot into 2 RS232 (DB9) serial ports. Based on a native single chip design (no bridge chip), this 2-port serial adapter card allows you to harness the full capability offered by PCI Express (PCIe), and reducing the load applied to the CPU by as much as 48% over conventional serial cards.The RS232 Serial Adapter Card (PEX2S553) is compatible with a broad range of operating systems including Windows and Linux Kernel 2.6.11 to 4.11.x, and MAC OS 10.4 and above.Plus, the serial card includes an optional half-height/low profile bracket that allows the card to be installed in any PCI Express slot, regardless of the size of the computer case.SPECIFICATIONS:Connector Type(s)1 - PCI Express x1 Internal Ports1 - LP4 (4 pin; Large Drive Power) External Ports2 - DB-9 (9 pin, D-Sub) Operating Temperature-10C to 80C (14F to 176F) Storage Temperature-20C to 100C (-4F to 212F) Humidity5~85% RH Ports2 InterfaceSerial Bus TypePCI Express Card TypeStandard Profile (LP bracket incl.) Port StyleIntegrated on Card Chipset IDASIX - MCS9922CV-AA Package Height1.3 in [32 mm] Package Length6.7 in [17.0 cm] Shipping (Package) Weight5.2 oz [148.0 g] Package Width5.7 in [14.4 cm] Package Quantity1 Serial ProtocolRS-232 Max Baud Rate460.8 Kbps FIFO128 Bytes MTBF1,378,573 hours Weight of Product2.2 oz [61 g] ColorGreen MaterialSteel Product Length4.1 in [10.5 cm] Product Width4.7 in [12 cm] Product Height0.8 in [2 cm] 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, 11 Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016, 2019, 2022 Mac OS X 10.4 to 10.10 Linux kernel 2.6.x and up - LTS Versions onlyNoteSelectable power output on pin 9 of the serial port Included in Package1 - 2 Port PCI-Express Serial Card 2 - Low Profile Brackets 1 - Driver CD 1 - Instruction Manual