{"product_id":"db9-db15-db25-db37-rs232-dupont-2-54-terminal-block-adapter-board","title":"DB9 DB15 DB25 DB37 RS232 to DuPont 2.54mm Terminal Adapter Board","description":"\n\u003ch2\u003eDB9 \/ DB15 \/ DB25 \/ DB37 to DuPont 2.54mm Terminal Block Adapter Board\u003c\/h2\u003e\n\u003cp\u003eSimplify your serial communication wiring projects with this versatile RS-232 breakout adapter board. Whether you're prototyping, debugging, or building custom electronics, this adapter lets you quickly and cleanly connect DB9, DB15, DB25, or DB37 D-sub connectors directly to standard 2.54mm DuPont pin headers or screw terminal blocks — no soldering of individual wires required.\u003c\/p\u003e\n\n\u003cp\u003eCertified to CE and RoHS standards, this adapter board is built with quality and safety in mind, operating safely at low voltages (below 50Vac or 75Vdc). Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-format compatibility:\u003c\/strong\u003e Supports DB9, DB15, DB25, and DB37 D-sub connectors for maximum flexibility across different projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2.54mm DuPont pitch:\u003c\/strong\u003e Standard 2.54mm (0.1\") header spacing makes it compatible with breadboards, Arduino, Raspberry Pi, and most development boards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRS-232 \/ Serial breakout:\u003c\/strong\u003e Ideal for RS-232 signal testing, protocol analysis, and custom wiring harnesses.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eScrew terminal block design:\u003c\/strong\u003e Secure, tool-assisted wire connections ensure reliable, stable signal paths without accidental disconnects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE \u0026amp; RoHS certified:\u003c\/strong\u003e Meets European compliance standards — no high-concern chemicals, environmentally responsible construction.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact circuit board form factor:\u003c\/strong\u003e Easy to integrate into enclosures, panels, or project boxes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo battery required:\u003c\/strong\u003e Purely passive breakout — no additional power supply needed for the adapter itself.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnector Types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDB9, DB15, DB25, DB37 (D-sub)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Pitch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.54mm (DuPont \/ screw terminal)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE, RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLow voltage — below 50Vac or 75Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot included \/ Not required\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWireless\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\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\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWho Is This For?\u003c\/h3\u003e\n\u003cp\u003eThis adapter board is perfect for electronics hobbyists, embedded systems developers, industrial automation engineers, and anyone working with legacy serial port equipment who needs a clean, reliable breakout solution for D-sub connectors.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-2-pin-quick-splice-spring-wire-connectors-lock-terminals\"\u003e10pcs 2-Pin Spring Wire Connectors – Quick Splice Lock Terminals\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-self-tapping-screws-m2-2-m4-8-phillips-wood-hinge\"\u003e10PCS Stainless Steel Self-Tapping Screws M2.2–M4.8 Phillips\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/12pcs-16mm-momentary-push-button-switch-1no-metal-2-pin-self-reset\"\u003e12pcs 16mm Momentary Push Button Switch 1NO Metal 2-Pin Self-Reset\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What connector types does this DB serial adapter board support?\u003c\/h4\u003e\n\u003cp\u003eA: This adapter board supports four common D-sub connector sizes: DB9 (9-pin), DB15 (15-pin), DB25 (25-pin), and DB37 (37-pin). Each variant breaks out its pins to standard 2.54mm DuPont headers or screw terminal blocks, making it easy to interface with breadboards or custom wiring setups.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this adapter compatible with Arduino or Raspberry Pi projects?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The 2.54mm (0.1\") DuPont pitch is the standard used by Arduino, Raspberry Pi, and virtually all common development boards and breadboards, making this adapter a natural fit for prototyping serial communication circuits.\u003c\/p\u003e\n\u003ch4\u003eQ: Do I need any additional power supply for this adapter board?\u003c\/h4\u003e\n\u003cp\u003eA: No. This is a purely passive breakout board — it requires no external power supply or battery. It simply routes the pins from the D-sub connector to the terminal block or DuPont header outputs.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this board certified for safety compliance?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. This adapter board carries both CE and RoHS certifications, confirming it meets European safety and environmental standards and contains no high-concern chemicals.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What connector types does this DB serial adapter board support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This adapter board supports four common D-sub connector sizes: DB9 (9-pin), DB15 (15-pin), DB25 (25-pin), and DB37 (37-pin). Each variant breaks out its pins to standard 2.54mm DuPont headers or screw terminal blocks, making it easy to interface with breadboards or custom wiring setups.\"}}, {\"@type\": \"Question\", \"name\": \"Is this adapter compatible with Arduino or Raspberry Pi projects?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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