{"id":29692,"date":"2025-09-18T13:21:00","date_gmt":"2025-09-18T05:21:00","guid":{"rendered":"https:\/\/pxisource.com\/?post_type=product&p=29692"},"modified":"2026-07-26T10:43:01","modified_gmt":"2026-07-26T02:43:01","slug":"usb-6421","status":"publish","type":"product","link":"https:\/\/pxisource.com\/ru\/product\/usb-6421\/","title":{"rendered":"USB-6421"},"content":{"rendered":"

NI USB-6421 X Series Multifunction USB DAQ Device<\/h3>\n

\n\u0417\u0435\u043c\u043b\u044f NI USB-6421<\/strong> is a high-performance X Series multifunction USB data acquisition (DAQ) device designed for advanced measurement, automated testing, electronic validation, and industrial research applications. Developed by National Instruments, the USB-6421 combines analog input, analog output, digital I\/O, and counter\/timer functions into a flexible USB-based measurement platform.\n<\/p>\n

\nBased on NI X Series DAQ technology, the USB-6421 provides high-speed acquisition, accurate timing, and flexible I\/O capability for engineers developing complex measurement and automation systems. It delivers reliable performance without requiring a PXI chassis.\n<\/p>\n

\nWith NI-DAQmx driver support, LabVIEW compatibility, and USB connectivity, the USB-6421 enables users to create scalable test and measurement solutions for laboratory, industrial, and engineering applications.\n<\/p>\n

Key Features of NI USB-6421<\/h3>\n

Multifunction X Series DAQ Architecture<\/h4>\n

\nThe USB-6421 integrates multiple measurement functions into one compact USB DAQ platform.\n<\/p>\n

    \n
  • Analog input measurement<\/li>\n
  • Analog output generation<\/li>\n
  • Digital input and output<\/li>\n
  • Counter\/timer functionality<\/li>\n
  • Multifunction acquisition capability<\/li>\n<\/ul>\n

    High-Speed Analog Data Acquisition<\/h4>\n

    \nThe USB-6421 provides accurate and reliable analog measurement capability for demanding applications.\n<\/p>\n

      \n
    • \u0412\u044b\u0441\u043e\u043a\u043e\u0441\u043a\u043e\u0440\u043e\u0441\u0442\u043d\u044b\u0439 \u0441\u0431\u043e\u0440 \u0441\u0438\u0433\u043d\u0430\u043b\u043e\u0432<\/li>\n
    • Multi-channel voltage measurement<\/li>\n
    • Synchronized data collection<\/li>\n
    • Engineering signal analysis<\/li>\n<\/ul>\n

      Advanced Timing and Synchronization<\/h4>\n

      \nThe USB-6421 supports hardware timing and synchronization features for complex measurement systems.\n<\/p>\n

        \n
      • Hardware-timed acquisition<\/li>\n
      • Trigger control<\/li>\n
      • Counter operations<\/li>\n
      • Synchronized measurement<\/li>\n<\/ul>\n

        Flexible Digital I\/O Capability<\/h4>\n

        \nThe USB-6421 provides digital control capability for automation and external device integration.\n<\/p>\n

          \n
        • Digital signal monitoring<\/li>\n
        • Device control<\/li>\n
        • Automation interface<\/li>\n
        • External hardware connection<\/li>\n<\/ul>\n

          NI Software Support<\/h4>\n

          \nThe USB-6421 works with NI software platforms for complete measurement application development.\n<\/p>\n

            \n
          • LabVIEW support<\/li>\n
          • NI-DAQmx driver support<\/li>\n
          • NI MAX configuration<\/li>\n
          • TestStand integration<\/li>\n<\/ul>\n

            Applications of NI USB-6421<\/h3>\n

            Automated Test Equipment<\/h4>\n

            \nThe USB-6421 provides flexible acquisition and control capability for automated testing systems.\n<\/p>\n

              \n
            • Electronic product testing<\/li>\n
            • Functional verification<\/li>\n
            • Production test systems<\/li>\n
            • ATE development<\/li>\n<\/ul>\n

              \u0412\u0435\u0440\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u043e\u0433\u043e \u0434\u0438\u0437\u0430\u0439\u043d\u0430<\/h4>\n

              \nThe USB-6421 helps engineers validate hardware designs through accurate measurement and analysis.\n<\/p>\n

                \n
              • Prototype testing<\/li>\n
              • Signal monitoring<\/li>\n
              • Hardware validation<\/li>\n
              • Engineering analysis<\/li>\n<\/ul>\n

                Industrial Measurement<\/h4>\n

                \nThe USB-6421 supports industrial applications requiring reliable data acquisition and control.\n<\/p>\n

                  \n
                • Process monitoring<\/li>\n
                • Machine testing<\/li>\n
                • \u041f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0430\u044f \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0430\u0446\u0438\u044f<\/li>\n
                • \u0414\u0438\u0430\u0433\u043d\u043e\u0441\u0442\u0438\u043a\u0430 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u044f<\/li>\n<\/ul>\n

                  Laboratory Research<\/h4>\n

                  \nThe USB-6421 provides a flexible platform for scientific experiments and engineering research.\n<\/p>\n

                    \n
                  • Experimental measurement<\/li>\n
                  • Sensor acquisition<\/li>\n
                  • Data analysis<\/li>\n
                  • Prototype development<\/li>\n<\/ul>\n

                    \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f<\/h3>\n

                    \nThe NI USB-6421 supports National Instruments software tools for advanced DAQ development.\n<\/p>\n

                      \n
                    • \u041b\u0430\u0431\u0412\u044c\u044e<\/li>\n
                    • \u041d\u0418-DAQmx<\/li>\n
                    • NI MAX<\/li>\n
                    • \u0422\u0435\u0441\u0442\u043e\u0432\u0430\u044f \u0441\u0442\u043e\u0439\u043a\u0430<\/li>\n<\/ul>\n

                      Technical Specifications of USB-6421<\/h3>\n\n\n\n\n\n\n\n\n\n
                      \u0424\u0443\u043d\u043a\u0446\u0438\u044f<\/th>\n\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435<\/th>\n<\/tr>\n
                      Product Type<\/td>\nX Series Multifunction USB DAQ Device<\/td>\n<\/tr>\n
                      Platform<\/td>\nUSB DAQ<\/td>\n<\/tr>\n
                      DAQ Family<\/td>\nX Series<\/td>\n<\/tr>\n
                      Functions<\/td>\nAnalog Input, Analog Output, Digital I\/O, Counter\/Timers<\/td>\n<\/tr>\n
                      Connectivity<\/td>\nUSB Interface<\/td>\n<\/tr>\n
                      Software<\/td>\nLabVIEW, NI-DAQmx<\/td>\n<\/tr>\n
                      Applications<\/td>\nTesting, measurement, automation, research<\/td>\n<\/tr>\n<\/table>\n

                      Comparison with Similar USB DAQ Devices<\/h3>\n\n\n\n\n\n\n
                      \u041c\u043e\u0434\u0435\u043b\u044c<\/th>\n\u041e\u0441\u043d\u043e\u0432\u043d\u043e\u0435 \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u0435<\/th>\nBest Application<\/th>\n<\/tr>\n
                      \n
                      \nNI USB-6421<\/strong>
                      \n<\/a>\n<\/td>\n                      		\nHigh-performance multifunction USB DAQ device combining analog, digital, and timing functions.\n<\/td>\n\nAdvanced measurement systems\n<\/td>\n<\/tr>\n
                      \n
                      \nNI USB-6341<\/strong>
                      \n<\/a>\n<\/td>\n                      		\nX Series USB DAQ device designed for general automated measurement applications.\n<\/td>\n\nGeneral testing\n<\/td>\n<\/tr>\n
                      \n
                      \nNI USB-6343<\/strong>
                      \n<\/a>\n<\/td>\n                      		\nHigher-channel USB DAQ device for complex multi-channel acquisition.\n<\/td>\n\nIndustrial and laboratory systems\n<\/td>\n<\/tr>\n
                      \n
                      \nNI USB-6361<\/strong>
                      \n<\/a>\n<\/td>\n                      		\nHigher-performance X Series USB DAQ device for advanced high-speed applications.\n<\/td>\n\nHigh-speed testing\n<\/td>\n<\/tr>\n<\/table>\n

                      Recommended Related Products<\/h3>\n

                      \nThe following products are commonly used with the USB-6421 to build complete data acquisition and automated test systems.\n<\/p>\n\n\n\n\n\n\n
                      \n
                      \nNI USB-6363<\/strong>
                      \n<\/a>\n<\/td>\n                      		\nHigh-speed X Series USB DAQ device for advanced acquisition and automated testing.\n<\/td>\n<\/tr>\n
                      \n
                      \nNI USB-6343<\/strong>
                      \n<\/a>\n<\/td>\n                      		\nMultifunction USB DAQ device for flexible measurement and automation applications.\n<\/td>\n<\/tr>\n
                      \n
                      \nNI PXIe-6421<\/strong>
                      \n<\/a>\n<\/td>\n                      		\nPXI Express DAQ module for modular high-performance test systems.\n<\/td>\n<\/tr>\n
                      \n
                      \nNI cDAQ-9178<\/strong>
                      \n<\/a>\n<\/td>\n                      		\nCompactDAQ chassis for modular sensor measurement and industrial acquisition.\n<\/td>\n<\/tr>\n
                      \n
                      \nNI USB-6002<\/strong>
                      \n<\/a>\n<\/td>\n                      		\nEntry-level USB DAQ device for basic measurement and education applications.\n<\/td>\n<\/tr>\n<\/table>\n

                      Why Choose NI USB-6421<\/h3>\n
                        \n
                      • High-performance multifunction USB DAQ capability<\/li>\n
                      • Flexible analog and digital measurement functions<\/li>\n
                      • Advanced timing and synchronization<\/li>\n
                      • Supports LabVIEW and NI-DAQmx<\/li>\n
                      • Easy USB system integration<\/li>\n
                      • Ideal for automated testing and engineering measurement<\/li>\n<\/ul>\n

                        \u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/h3>\n

                        \n\u0417\u0435\u043c\u043b\u044f NI USB-6421 X Series Multifunction USB DAQ Device<\/strong> provides a flexible and powerful measurement solution for engineers requiring reliable data acquisition and control capability.\n<\/p>\n

                        \nWith multifunction I\/O, USB connectivity, advanced timing features, and NI software support, the USB-6421 is an excellent choice for automated testing, industrial measurement, electronic validation, and research applications.<\/p>","protected":false},"excerpt":{"rendered":"

                        \u041f\u0438\u0442\u0430\u043d\u0438\u0435 \u043e\u0442 \u0448\u0438\u043d\u044b
                        \n\u041c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0435 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u043e\u0434\u043d\u043e\u0441\u0442\u043e\u0440\u043e\u043d\u043d\u0438\u0445 \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u044b\u0445 \u0432\u0445\u043e\u0434\u043e\u0432: 16
                        \n\u041c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0435 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0434\u0438\u0444\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0445 \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u044b\u0445 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u043a\u0430\u043d\u0430\u043b\u043e\u0432: 8
                        \n\u041c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u0430\u044f \u0447\u0430\u0441\u0442\u043e\u0442\u0430 \u0434\u0438\u0441\u043a\u0440\u0435\u0442\u0438\u0437\u0430\u0446\u0438\u0438: 250 \u043a\u0412\u044b\u0431\/\u0441
                        \n\u041e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u0430\u044f \u0432\u044b\u0431\u043e\u0440\u043a\u0430: \u041d\u0435\u0442
                        \n\u0420\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u043e\u0433\u043e \u0432\u0445\u043e\u0434\u0430: 16 \u0431\u0438\u0442
                        \n\u0420\u0430\u0437\u044a\u0435\u043c: USB C
                        \n\u0427\u0438\u0441\u043b\u043e \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u044b\u0445 \u0432\u044b\u0445\u043e\u0434\u043d\u044b\u0445 \u043a\u0430\u043d\u0430\u043b\u043e\u0432: 2
                        \n\u041c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u0430\u044f \u0447\u0430\u0441\u0442\u043e\u0442\u0430 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f: 250 \u043a\u0432\u044b\u0431\/\u0441
                        \nNumber of Bidirectional Digital Channels: 16
                        \n\u041a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0441\u0447\u0435\u0442\u0447\u0438\u043a\u043e\u0432\/\u0442\u0430\u0439\u043c\u0435\u0440\u043e\u0432: 4
                        \nAnalog Input Absolute Accuracy: 2.61 mV
                        \nAnalog Input FIFO Buffer Size: 8191 samples
                        \n\u0418\u0437\u043e\u043b\u044f\u0446\u0438\u044f \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u043e\u0433\u043e \u0432\u0445\u043e\u0434\u0430: \u2013<\/p>","protected":false},"featured_media":31905,"template":"","meta":{"_acf_changed":false},"product_brand":[18],"product_cat":[752],"product_tag":[],"class_list":["post-29692","product","type-product","status-publish","has-post-thumbnail","product_brand-national-instruments","product_cat-data-acquisition-devices","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"\nNI USB-6421 USB Multifunction I\/O Device 789887-01 - New & Original<\/title>\n<meta name=\"description\" content=\"NI USB-6421 X Series USB DAQ device provides analog input, output, digital I\/O, and counter functions for automated testing, industrial measurement, and research.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pxisource.com\/ru\/product\/usb-6421\/\" \/>\n<meta property=\"og:locale\" content=\"ru_RU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"USB-6421\" \/>\n<meta property=\"og:description\" content=\"NI USB-6421 X Series USB DAQ device provides analog input, output, digital I\/O, and counter functions for automated testing, industrial measurement, and research.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pxisource.com\/ru\/product\/usb-6421\/\" \/>\n<meta property=\"og:site_name\" content=\"PXI Source\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61582573040385\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-26T02:43:01+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pxisource.com\/wp-content\/uploads\/2026\/04\/USB-6421.webp\" \/>\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\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0426\u0435\u043d\u0430\" \/>\n\t<meta name=\"twitter:data1\" content=\"$999.00\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c\" \/>\n\t<meta name=\"twitter:data2\" content=\"\u0412 \u043d\u0430\u043b\u0438\u0447\u0438\u0438\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/pxisource.com\\\/product\\\/usb-6421\\\/\",\"url\":\"https:\\\/\\\/pxisource.com\\\/product\\\/usb-6421\\\/\",\"name\":\"NI USB-6421 USB Multifunction I\\\/O Device 789887-01 - 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