Add 2 RS-232 serial ports to your standard or small form factor computer through a PCI Express expansion slotThe 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.This product is a replacement for our PEX2S552 card.Backed by a StarTech.com 2-year warranty and free lifetime technical support.The StarTech.com Advantage Specification: Ports & interfaces Internal Yes Output interface Serial Serial interface type RS-232 Serial ports quantity 2 Parallel ports quantity 1 Host interface PCIe Expansion card standard PCIe 1.0a Technical details Chipset ASIX - MCS9901CV-CC FIFO (First In, First Out) 128 B Supported protocols EPP, ECP, SPP, PS/2 Sustainability certificates CE, RoHS Performance Baud rate 460.8 Kbit/s Chipset ASIX - MCS9901CV-CC FIFO (First In, First Out) 128 B Product colour Green, Stainless steel Supported protocols EPP, ECP, SPP, PS/2 Harmonized System (HS) code 84733020 Colour Product colour Green, Stainless steel Design Internal Yes Product colour Green, Stainless steel Features Baud rate 460.8 Kbit/s Chipset ASIX - MCS9901CV-CC FIFO (First In, First Out) 128 B Supported protocols EPP, ECP, SPP, PS/2 Flow Control type DTR/DSR, RTS/CTS, XON/XOFF Harmonized System (HS) code 84733020 Operational conditions Operating temperature (T-T) -10 - 80 °C Storage temperature (T-T) -20 - 100 °C Operating relative humidity (H-H) 5 - 85% 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 2000, Windows 2000 Professional, 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 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 CE, Windows ME, 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 10.4 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 Weight & dimensions Width 4.72" (120 mm) Depth 4.13" (105 mm) Height 0.787" (20 mm) Weight 3.95 oz (112 g) Package width 5.71" (145 mm) Package depth 6.85" (174 mm) Package height 1.22" (31 mm) Package weight 7.34 oz (208 g) Packaging data Manual Yes Drivers included Yes Package width 5.71" (145 mm) Package depth 6.85" (174 mm) Package height 1.22" (31 mm) Package weight 7.34 oz (208 g) Logistics data Products per master (outer) case 75 pc(s) Master (outer) case width 14" (355 mm) Master (outer) case length 26.7" (679 mm) Master (outer) case height 12.6" (320 mm) Packaging content Manual Yes Drivers included Yes Other features Chipset ASIX - MCS9901CV-CC
