{"product_id":"startech-com-pex4s232485-4-port-pcie-serial-card-2xrs232-2xrs422-485","title":"StarTech.com PEX4S232485 4-Port PCIe Serial Card 2xRS232 2xRS422\/485","description":"\u003cstyle\u003e\n body { font-family: Arial, sans-serif; color: #333; line-height: 1.6; padding: 20px; }\n h1 { color: #1e90ff; text-align: center; font-size: 30px; margin-bottom: 20px; }\n h2 { color: #00bfff; font-size: 24px; border-bottom: 2px solid #1e90ff; padding-bottom: 5px; margin-top: 30px; }\n p { font-size: 16px; margin: 10px 0; }\n table { width: 100%; border-collapse: collapse; margin: 20px 0; background-color: #fff; box-shadow: 0 4px 8px rgba(0,0,0,0.1); }\n th, td { padding: 12px; text-align: left; border: 1px solid #ddd; }\n th { background-color: #1e90ff; color: white; font-weight: bold; }\n tr:nth-child(even) { background-color: #f9f9f9; }\n .highlight { color: #1e90ff; font-weight: bold; }\n .section { background-color: #f0f8ff; padding: 20px; border-radius: 10px; margin: 20px 0; }\n ul, ol { margin-left: 20px; }\n li { margin-bottom: 10px; }\n .compatibility-note { background-color: #e6fffa; border: 1px solid #38b2ac; padding: 15px; border-radius: 8px; color: #2c7a7b; font-weight: bold; }\n\u003c\/style\u003e\n\u003ch1\u003eStarTech.com PEX4S232485 4-Port PCIe Serial Card 2xRS232 2xRS422\/485\u003c\/h1\u003e\n\u003cp\u003eThis is a \u003cspan class=\"highlight\"\u003eStarTech.com 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 \/ RS485\u003c\/span\u003e (MPN: PEX4S232485, UPC: 065030849357). The PEX4S232485 adds two RS232 serial ports and two RS422\/RS485 serial ports to your PC through a PCI Express expansion slot. It supports RS-232, RS-422, RS-485 2-wire, and RS-485 4-wire modes for versatile serial communication in full-size or small form factor systems. Backed by StarTech.com lifetime warranty and free lifetime technical support.\u003c\/p\u003e\n\u003cdiv class=\"compatibility-note\"\u003e\n PCIe COMPATIBILITY: Installs in PCI Express x1 slots and is backward compatible with x4, x8, or x16 slots. Includes both low-profile and full-profile brackets for small form factor and standard desktop PCs.\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003ch2\u003eVersatile Serial Connectivity Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan class=\"highlight\"\u003eMixed Port Configuration\u003c\/span\u003e – Two RS232 ports plus two switchable RS422\/RS485 ports for broad protocol support including RS-232, RS-422, RS-485 2-wire, and RS-485 4-wire modes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"highlight\"\u003eBreakout Cable Design\u003c\/span\u003e – Single breakout cable connects all four DB-9 ports, minimizing clutter and simplifying cabling for industrial or legacy device connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"highlight\"\u003eFlexible System Fit\u003c\/span\u003e – Low-profile and full-profile bracket options ensure compatibility with compact PCs and standard towers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"highlight\"\u003eHigh-Speed Performance\u003c\/span\u003e – Up to 3.59 Mbit\/s data transfer rate on RS422\/RS485 ports, suitable for demanding serial applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"highlight\"\u003eTAA Compliant Build\u003c\/span\u003e – Meets Trade Agreements Act standards; manufactured in Taiwan with RoHS, WEEE, and REACH certifications for environmental compliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"highlight\"\u003ePlug-and-Play Ready\u003c\/span\u003e – Includes driver CD for easy setup on PC platforms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003ch2\u003eComprehensive Technical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStarTech.com\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStarTech.com\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMPN \/ Manufacturer Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePEX4S232485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e065030849357\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMultiport Serial Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHost Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePCI Express x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Data Transfer Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.59 Mbit\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePlatform Supported\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePorts\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 x RS232, 2 x RS422\/RS485; 4 x DB-9 Serial via breakout cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eForm Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlug-in Card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCard Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.7\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCard Width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.6\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCard Weight (Approximate)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.40 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.80 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.70\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.80\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8.30\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength Description\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eShort\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTaiwan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTAA Compliant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironmental Certifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoHS, WEEE, REACH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironmentally Friendly\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStarTech.com Lifetime Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackaged Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003ch2\u003eInstallation Guide for StarTech.com PCIe Serial Card\u003c\/h2\u003e\n\u003cp\u003eSimple PCIe installation typically takes 10-15 minutes. Pro tip: Ground yourself with an anti-static wrist strap to protect components.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ePower off PC and unplug from power source; open case and locate available PCIe x1 slot.\u003c\/li\u003e\n\u003cli\u003eRemove bracket cover; insert card firmly into slot and secure with low-profile or full-profile bracket as needed.\u003c\/li\u003e\n\u003cli\u003eConnect the included breakout cable to the card's internal connector for external DB-9 access.\u003c\/li\u003e\n\u003cli\u003eClose case, power on, and boot into OS; insert driver CD or download from StarTech.com for automatic detection.\u003c\/li\u003e\n\u003cli\u003eVerify ports in Device Manager; test with serial devices. Pro tip: Update motherboard chipset drivers prior to installation for optimal compatibility.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003ch2\u003eWhy Choose StarTech.com 4-Port PCIe Serial Combo Card\u003c\/h2\u003e\n\u003cp\u003eThe PEX4S232485 provides a reliable single-card solution for expanding serial connectivity, with broad protocol support and included accessories for immediate deployment in professional environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eEnhance your PC with StarTech.com PEX4S232485 serial ports—Order today!\u003c\/p\u003e\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Multiport Serial Adapter\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMPN:\u003c\/strong\u003e PEX4S232485\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Brand:\u003c\/strong\u003e StarTech.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Taiwan\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Port:\u003c\/strong\u003e PCI Express x1\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExternal Interfaces:\u003c\/strong\u003e Serial (RS-232)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNumber of Ports:\u003c\/strong\u003e 4 Ports\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e PEX4S232485\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer Warranty:\u003c\/strong\u003e Lifetime\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Does not apply\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUPC:\u003c\/strong\u003e 065030849357\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Does not apply","offers":[{"title":"Default Title","offer_id":43258830422134,"sku":"PEX4S232485","price":183.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/4277\/6950\/files\/10_79d3fd2d-e0db-46c0-b027-026f6381bdb2.jpg?v=1775414774","url":"https:\/\/sellizoe.com\/products\/startech-com-pex4s232485-4-port-pcie-serial-card-2xrs232-2xrs422-485","provider":"Sellizo","version":"1.0","type":"link"}