{"product_id":"4-2-inch-4-color-e-ink-display-spi-400-300-black-white-red-yellow-electronic-paper-screen","title":"4.2 Inch 4-Color E Ink Display SPI 400×300 Black White Red Yellow Electronic Paper Screen","description":"\u003ch2\u003e\u003cspan style=\"color: rgb(0, 0, 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\u003e4.2 Inch 4-Color E Ink Display 400×300 SPI Black White Red Yellow Electronic Paper Screen Overview\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);\"\u003eET042EP01 is a 4.2-inch diagonal 4-color E Ink E-Paper display module featuring a 400×300 resolution and supporting Black, White, Red, and Yellow colors. It adopts EPD (Electrophoretic Display) technology and an SPI interface for communication. It features an active area of 84.8(W) × 63.6(H) mm and an outline dimension of 91(W) × 77(H) × 1.0(D) mm. ET042EP01 operates at temperatures from 0°C to 40°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 multi-color display, low power consumption, and clear image presentation.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cimg class=\"alignnone size-full wp-image-42337\" src=\"https:\/\/www.youritech.com\/uploads\/2026\/08\/4.2-Inch-4-Color-E-Ink-Display-400%C3%97300-SPI-Black-White-Red-Yellow-Electronic-Paper-Screen-ET042EP01_01.jpg.webp\" alt=\"4.2 Inch 4-Color E Ink Display 400×300 SPI Black White Red Yellow Electronic Paper Screen\" width=\"930\" height=\"408\" srcset=\"https:\/\/www.youritech.com\/uploads\/2026\/08\/4.2-Inch-4-Color-E-Ink-Display-400×300-SPI-Black-White-Red-Yellow-Electronic-Paper-Screen-ET042EP01_01.jpg.webp 930w, https:\/\/www.youritech.com\/uploads\/2026\/08\/4.2-Inch-4-Color-E-Ink-Display-400×300-SPI-Black-White-Red-Yellow-Electronic-Paper-Screen-ET042EP01_01-768x337.jpg.webp 768w\" sizes=\"(max-width: 930px) 100vw, 930px\"\u003e\u003cstrong\u003e4.2 Inch E Ink Display  Specification\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\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;\"\u003eET042EP01\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;\"\u003e4.2 inch\u003c\/td\u003e\n    \u003c\/tr\u003e\n\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\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\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 × 1.0 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\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\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 ~ 40°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 \u003c\/p\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\u003eET029EP02-Y\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);\"\u003eDEArduino Development Board\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cimg class=\"alignnone size-full wp-image-42338\" src=\"https:\/\/www.youritech.com\/uploads\/2026\/08\/4.2-Inch-4-Color-E-Ink-Display-400%C3%97300-SPI-Black-White-Red-Yellow-Electronic-Paper-Screen-ET042EP01_02.jpg.webp\" alt=\"4.2 Inch 4-Color E Ink Display 400×300 SPI Black White Red Yellow Electronic Paper Screen\" width=\"930\" height=\"240\" srcset=\"https:\/\/www.youritech.com\/uploads\/2026\/08\/4.2-Inch-4-Color-E-Ink-Display-400×300-SPI-Black-White-Red-Yellow-Electronic-Paper-Screen-ET042EP01_02.jpg.webp 930w, https:\/\/www.youritech.com\/uploads\/2026\/08\/4.2-Inch-4-Color-E-Ink-Display-400×300-SPI-Black-White-Red-Yellow-Electronic-Paper-Screen-ET042EP01_02-768x198.jpg.webp 768w\" sizes=\"(max-width: 930px) 100vw, 930px\"\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":"ET029EP02-Y","offer_id":53282804334901,"sku":null,"price":17.46,"currency_code":"USD","in_stock":true},{"title":"C02 Adapter Board","offer_id":53282804367669,"sku":null,"price":6.72,"currency_code":"USD","in_stock":true},{"title":"STM32 Development Board","offer_id":53282804400437,"sku":null,"price":24.63,"currency_code":"USD","in_stock":true},{"title":"ESP32 Development Board","offer_id":53282804433205,"sku":null,"price":24.63,"currency_code":"USD","in_stock":true},{"title":"ESP8266 Development Board","offer_id":53282804465973,"sku":null,"price":24.63,"currency_code":"USD","in_stock":true},{"title":"DEArduino Development 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