{"product_id":"4-2-inch-monochrome-e-ink-display-spi-400-300-fast-refresh-low-power-black-white-electronic-paper-screen","title":"4.2 Inch Monochrome E Ink Display SPI 400×300 Fast Refresh Low Power Black \u0026 White Electronic Paper Screen","description":"\u003ch2\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003e\u003cspan class=\"magic-8\"\u003e\u003cspan class=\"magic-9\"\u003e\u003cimg class=\"alignnone size-full wp-image-41706\" src=\"https:\/\/www.youritech.com\/uploads\/2026\/07\/Electronic-Paper-Display-01.jpg.webp\" alt=\"Electronic Paper Display\" width=\"930\" height=\"295\" srcset=\"https:\/\/www.youritech.com\/uploads\/2026\/07\/Electronic-Paper-Display-01.jpg.webp 930w, https:\/\/www.youritech.com\/uploads\/2026\/07\/Electronic-Paper-Display-01-768x244.jpg.webp 768w\" sizes=\"(max-width: 930px) 100vw, 930px\"\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e4.2 Inch Monochrome E Ink Display 400×300 SPI Fast Refresh Low Power Black \u0026amp; White Electronic Paper Screen Overview\u003c\/span\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eET042EP03 is a 4.3-inch diagonal Monochrome E Ink E-Paper display module featuring a 400×300 resolution and supporting Black \u0026amp; White image display. It adopts EPD (Electrophoretic Display) technology and an SPI interface for communication, providing fast refresh performance and low power consumption. The module features an active area of 84.8(W) × 63.6(H) mm and an outline dimension of 91(W) × 77(H) × 1.2(D) mm. ET042EP03 operates at temperatures from 0°C to 50°C and supports storage temperatures from -25°C to 70°C. The module does not include a touch panel, making it suitable for electronic paper applications requiring fast refresh, low power consumption, and clear black-and-white image presentation.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003cimg class=\"alignnone size-full wp-image-42321\" src=\"https:\/\/www.youritech.com\/uploads\/2026\/08\/4.2-Inch-Monochrome-E-Ink-Display-400%C3%97300-SPI-Fast-Refresh-Low-Power-Black-White-Electronic-Paper-Screen-ET042EP03_01.jpg.webp\" alt=\"4.2 Inch Monochrome E Ink Display 400×300 SPI Fast Refresh Low Power Black \u0026amp; White Electronic Paper Screen\" width=\"930\" height=\"408\" srcset=\"https:\/\/www.youritech.com\/uploads\/2026\/08\/4.2-Inch-Monochrome-E-Ink-Display-400×300-SPI-Fast-Refresh-Low-Power-Black-White-Electronic-Paper-Screen-ET042EP03_01.jpg.webp 930w, https:\/\/www.youritech.com\/uploads\/2026\/08\/4.2-Inch-Monochrome-E-Ink-Display-400×300-SPI-Fast-Refresh-Low-Power-Black-White-Electronic-Paper-Screen-ET042EP03_01-768x337.jpg.webp 768w\" sizes=\"(max-width: 930px) 100vw, 930px\"\u003e4.2 Inch E Ink Display  Specification\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; line-height: 1.5; border: 1px solid #ddd;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 18%; padding: 8px 12px; border: 1px solid #ddd; font-weight: bold;\"\u003ePart No.\u003c\/td\u003e\n\u003ctd style=\"width: 32%; padding: 8px 12px; border: 1px solid #ddd;\"\u003eET042EP03\u003c\/td\u003e\n\u003ctd style=\"width: 18%; padding: 8px 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eSize\u003c\/td\u003e\n\u003ctd style=\"width: 32%; padding: 8px 12px; border: 1px solid #ddd;\"\u003e4.3 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eResolution\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e400 × 300\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eDisplay Mode\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eEPD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; font-weight: bold;\"\u003ePanel Interface\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eSPI\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eTouch Panel\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eOutline Dimension\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e91 × 77 × 1.2 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eActive Area\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e84.8 × 63.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eViewing Angle (L\/R\/U\/D)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eN\/A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eBrightness\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eOperation Temp.\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e0 ~ 50°C\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eStorage Temp.\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e-25 ~ 70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e4.2 Inch E Ink Display Solution For Reference\u003cbr\u003e\u003c\/strong\u003eET042EP03\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eC02 Adapter Board\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSTM32 Development Board\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eESP32 Development Board\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eESP8266 Development Board\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eArduino Development Board\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003cimg class=\"alignnone size-full wp-image-42322\" src=\"https:\/\/www.youritech.com\/uploads\/2026\/08\/4.2-Inch-Monochrome-E-Ink-Display-400%C3%97300-SPI-Fast-Refresh-Low-Power-Black-White-Electronic-Paper-Screen-ET042EP03_02.jpg.webp\" alt=\"4.2 Inch Monochrome E Ink Display 400×300 SPI Fast Refresh Low Power Black \u0026amp; White Electronic Paper Screen\" width=\"930\" height=\"240\" srcset=\"https:\/\/www.youritech.com\/uploads\/2026\/08\/4.2-Inch-Monochrome-E-Ink-Display-400×300-SPI-Fast-Refresh-Low-Power-Black-White-Electronic-Paper-Screen-ET042EP03_02.jpg.webp 930w, https:\/\/www.youritech.com\/uploads\/2026\/08\/4.2-Inch-Monochrome-E-Ink-Display-400×300-SPI-Fast-Refresh-Low-Power-Black-White-Electronic-Paper-Screen-ET042EP03_02-768x198.jpg.webp 768w\" sizes=\"(max-width: 930px) 100vw, 930px\"\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eFeatures For \u003c\/strong\u003e\u003cstrong\u003eYouritech E-Paper Display\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cimg class=\"alignnone size-full wp-image-41714\" src=\"https:\/\/www.youritech.com\/uploads\/2026\/07\/Features-For-Youritech-E-Paper-Display.jpg.webp\" alt=\"Features For Youritech E-Paper Display\" width=\"930\" height=\"464\" srcset=\"https:\/\/www.youritech.com\/uploads\/2026\/07\/Features-For-Youritech-E-Paper-Display.jpg.webp 930w, https:\/\/www.youritech.com\/uploads\/2026\/07\/Features-For-Youritech-E-Paper-Display-768x383.jpg.webp 768w\" sizes=\"(max-width: 930px) 100vw, 930px\"\u003e\u003cbr\u003e\u003cimg class=\"alignnone size-full wp-image-41709\" src=\"https:\/\/www.youritech.com\/uploads\/2026\/07\/Color-E-Paper-Module-Features_07.jpg.webp\" alt=\"Color E-Paper Module Features_07\" width=\"930\" height=\"316\" srcset=\"https:\/\/www.youritech.com\/uploads\/2026\/07\/Color-E-Paper-Module-Features_07.jpg.webp 930w, https:\/\/www.youritech.com\/uploads\/2026\/07\/Color-E-Paper-Module-Features_07-768x261.jpg.webp 768w\" sizes=\"(max-width: 930px) 100vw, 930px\"\u003e\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eFull-Color Display\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Rich, vibrant visuals for enhanced communication.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eUltra-Low Power\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Consumes power only during screen updates.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eSunlight Readable\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Clear visibility in bright outdoor environments.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003ePaper-Like Viewing\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Comfortable, glare-free reading experience.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eNo Backlight\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Uses ambient light to reduce power consumption.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eAlways-On Display\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Retains images without continuous power.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWide Viewing Angle\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Consistent image quality from any direction.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eLong Battery Life\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Ideal for battery-powered applications.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eThin \u0026amp; Lightweight\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Easy integration into compact devices.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eMultiple Color Options\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Available in B\/W\/Red, B\/W\/Yellow, four-color, and full-color versions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003cimg class=\"alignnone wp-image-41707 size-full\" src=\"https:\/\/www.youritech.com\/uploads\/2026\/07\/E-PAPER-DISPLAYS-APPLICATIONS-05.jpg.webp\" alt=\"Applications For Youritech E-Paper Display\" width=\"930\" height=\"626\" srcset=\"https:\/\/www.youritech.com\/uploads\/2026\/07\/E-PAPER-DISPLAYS-APPLICATIONS-05.jpg.webp 930w, https:\/\/www.youritech.com\/uploads\/2026\/07\/E-PAPER-DISPLAYS-APPLICATIONS-05-768x517.jpg.webp 768w\" sizes=\"(max-width: 930px) 100vw, 930px\"\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Electronic Shelf Labels (ESL)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Retail Digital Signage\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Smart Labels\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Advertising Displays\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Public Information Displays\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Transportation Signage\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Medical Information Displays\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Smart Home Control Panels\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Conference \u0026amp; Event Badges\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e-Industrial IoT Displays\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cimg class=\"alignnone size-full wp-image-41710\" src=\"https:\/\/www.youritech.com\/uploads\/2026\/07\/Color-E-Paper-Module-manufacture_08.jpg.webp\" alt=\"Youritech E-Paper Display R\u0026amp;D \u0026amp; Manufacturing Capabilities\" width=\"930\" height=\"495\" srcset=\"https:\/\/www.youritech.com\/uploads\/2026\/07\/Color-E-Paper-Module-manufacture_08.jpg.webp 930w, https:\/\/www.youritech.com\/uploads\/2026\/07\/Color-E-Paper-Module-manufacture_08-768x409.jpg.webp 768w\" sizes=\"(max-width: 930px) 100vw, 930px\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"YOURITECH","offers":[{"title":"ET042EP03","offer_id":53282020655413,"sku":null,"price":16.79,"currency_code":"USD","in_stock":true},{"title":"C02 Adapter Board","offer_id":53282020688181,"sku":null,"price":6.72,"currency_code":"USD","in_stock":true},{"title":"STM32 Development Board","offer_id":53282020720949,"sku":null,"price":24.63,"currency_code":"USD","in_stock":true},{"title":"ESP32 Development Board","offer_id":53282020753717,"sku":null,"price":24.63,"currency_code":"USD","in_stock":true},{"title":"ESP8266 Development Board","offer_id":53282020786485,"sku":null,"price":24.63,"currency_code":"USD","in_stock":true},{"title":"Arduino Development Board","offer_id":53282020819253,"sku":null,"price":24.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/2221\/3685\/files\/4.2_Inch_Monochrome_E_Ink_Display_400x300_SPI_Fast_Refresh_Low_Power_Black_White_Electronic_Paper_Screen_ET042EP03.jpg?v=1786693863","url":"https:\/\/youritech-online.com\/products\/4-2-inch-monochrome-e-ink-display-spi-400-300-fast-refresh-low-power-black-white-electronic-paper-screen","provider":"YOURITECH","version":"1.0","type":"link"}