{"id":45641,"date":"2026-09-08T06:23:54","date_gmt":"2026-09-08T06:23:54","guid":{"rendered":"https:\/\/geektechsol.com\/index.php\/product\/pex2s5531p-startech-com-2s1p-native-pci-express-parallel-serial-combo-card\/"},"modified":"2026-09-08T06:24:12","modified_gmt":"2026-09-08T06:24:12","slug":"pex2s5531p-startech-com-2s1p-native-pci-express-parallel-serial-combo-card","status":"publish","type":"product","link":"http:\/\/geektechsol.com\/index.php\/product\/pex2s5531p-startech-com-2s1p-native-pci-express-parallel-serial-combo-card\/","title":{"rendered":"PEX2S5531P StarTech.com 2S1P Native PCI Express Parallel Serial Combo Card"},"content":{"rendered":"<p>PEX2S5531P Technical Specifications<\/p>\n<p>StarTech.com 2S1P Native PCI Express Parallel Serial Combo Card with 16550<\/p>\n<p>Product Type: Serial\/Parallel Combo Adapter<\/p>\n<p>Number of Serial Ports (External): 2<\/p>\n<p>Number of Parallel Ports (External): 1<\/p>\n<p>TAA Compliant: Yes<\/p>\n<p>Form Factor: Plug-in Card<\/p>\n<p>Host Interface: PCI Express x1<\/p>\n<p>Environmentally Friendly: Yes<\/p>\n<p>Card Height: Dual-profile<\/p>\n<p>Country of Origin: Taiwan<\/p>\n<p>Height: 0.8\u2033<\/p>\n<p>Width: 4.7\u2033<\/p>\n<p>Packaged Quantity: 1<\/p>\n<p>Platform Supported: PC, Mac, Linux<\/p>\n<p>UART Type: 16550<\/p>\n<p>Length: 4.1\u2033<\/p>\n<p>Data Transfer Rate: 1.5MB\/s Parallel Port, 460.8kB\/s Serial Port<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PEX2S5531P Overview<\/p>\n<p>The PEX2S5531P 2S1P PCI Express Card turns a PCI Express slot into two RS232 (DB9) serial ports and one Parallel port. The adapter card features a native PCI Express single chip design that allows you to take advantage of full PCI Express capability, providing improved speed and reliability while reducing the load applied to the CPU by as much as 48% over conventional serial cards which use a bridge chip design.<\/p>\n","protected":false},"featured_media":45642,"comment_status":"closed","ping_status":"open","template":"","meta":{"_acf_changed":false},"product_brand":[679],"product_cat":[680,681],"product_tag":[682,356],"class_list":["post-45641","product","type-product","status-publish","has-post-thumbnail","product_brand-startech-com","product_cat-controllers","product_cat-startech-com-controllers","product_tag-controller-card","product_tag-pci-express","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PEX2S5531P StarTech.com 2S1P Native PCI Express Parallel Serial Combo Card - Geek Tech Sol<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/geektechsol.com\/index.php\/product\/pex2s5531p-startech-com-2s1p-native-pci-express-parallel-serial-combo-card\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PEX2S5531P StarTech.com 2S1P Native PCI Express Parallel Serial Combo Card - Geek Tech Sol\" \/>\n<meta property=\"og:description\" content=\"PEX2S5531P Overview The PEX2S5531P 2S1P PCI Express Card turns a PCI Express slot into two RS232 (DB9) serial ports and one Parallel port. The adapter card features a native PCI Express single chip design that allows you to take advantage of full PCI Express capability, providing improved speed and reliability while reducing the load applied to the CPU by as much as 48% over conventional serial cards which use a bridge chip design.\" \/>\n<meta property=\"og:url\" content=\"http:\/\/geektechsol.com\/index.php\/product\/pex2s5531p-startech-com-2s1p-native-pci-express-parallel-serial-combo-card\/\" \/>\n<meta property=\"og:site_name\" content=\"Geek Tech Sol\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-08T06:24:12+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/geektechsol.com\/wp-content\/uploads\/2026\/09\/StarTech.com-PEX2S5531P.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/pex2s5531p-startech-com-2s1p-native-pci-express-parallel-serial-combo-card\\\/\",\"url\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/pex2s5531p-startech-com-2s1p-native-pci-express-parallel-serial-combo-card\\\/\",\"name\":\"PEX2S5531P StarTech.com 2S1P Native PCI Express Parallel Serial Combo Card - Geek Tech Sol\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/geektechsol.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/pex2s5531p-startech-com-2s1p-native-pci-express-parallel-serial-combo-card\\\/#primaryimage\"},\"image\":{\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/pex2s5531p-startech-com-2s1p-native-pci-express-parallel-serial-combo-card\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/StarTech.com-PEX2S5531P.jpg\",\"datePublished\":\"2026-09-08T06:23:54+00:00\",\"dateModified\":\"2026-09-08T06:24:12+00:00\",\"breadcrumb\":{\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/pex2s5531p-startech-com-2s1p-native-pci-express-parallel-serial-combo-card\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/pex2s5531p-startech-com-2s1p-native-pci-express-parallel-serial-combo-card\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/pex2s5531p-startech-com-2s1p-native-pci-express-parallel-serial-combo-card\\\/#primaryimage\",\"url\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/StarTech.com-PEX2S5531P.jpg\",\"contentUrl\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/StarTech.com-PEX2S5531P.jpg\",\"width\":800,\"height\":800},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/pex2s5531p-startech-com-2s1p-native-pci-express-parallel-serial-combo-card\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"http:\\\/\\\/geektechsol.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/shop\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"PEX2S5531P StarTech.com 2S1P Native PCI Express Parallel Serial Combo Card\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/geektechsol.com\\\/#website\",\"url\":\"https:\\\/\\\/geektechsol.com\\\/\",\"name\":\"Geek Tech Sol\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/geektechsol.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"PEX2S5531P StarTech.com 2S1P Native PCI Express Parallel Serial Combo Card - Geek Tech Sol","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"http:\/\/geektechsol.com\/index.php\/product\/pex2s5531p-startech-com-2s1p-native-pci-express-parallel-serial-combo-card\/","og_locale":"en_US","og_type":"article","og_title":"PEX2S5531P StarTech.com 2S1P Native PCI Express Parallel Serial Combo Card - Geek Tech Sol","og_description":"PEX2S5531P Overview The PEX2S5531P 2S1P PCI Express Card turns a PCI Express slot into two RS232 (DB9) serial ports and one Parallel port. 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