This product has reached end of life. Here's a list of ePaper modules we have available.

[EOL] 4.2" Red White Black ePaper Display

Part Number: CFAP400300A0-0420

4.2" 3-Color ePaper Display 400x300 pixels. These electrophoretic displays are perfect for electronic shelf-labels, name badges, and other products that require very little power and don't need to be refreshed very often. Read more about how ePaper displays work on our blog.

Use the ePaper adapter board, any 3.3v Arduino and our demo sketch to quickly demonstrate the operation of this super-efficient display or check out our kits below.

This free ePaper software can be used to prepare your bitmap image for this display.

*This display DOES NOT support partial updates.


Physical Characteristics

Column Dots x Row Dots 400 x 300
Module Overall width height depth
millimeters 91 77 1.18
inches 3.583 3.031 0.046
*width / height does not include Foldable Tab
Diagonal Dimension 4.17"
Active Area width height
millimeters 84.8 63.6
inches 3.339 2.504
Dot Pitch width height
millimeters 0.212 0.212
inches 0.0083 0.0083
Optional Connectors CS050Z24GA0
Flexible Cable (FFC/FPC) length
millimeters 18.5
inches 0.728
Weight 16g
Pin Count 24

Optical Characteristics

View Angle Ultra-Wide°
Foreground Color Black / Red
Background Color White

Electrical Specifications

Supply Voltage for Logic Minimum 2.3V
Supply Voltage for Logic Maximum 3.6V
Supply Voltage for Logic Typical 3.3V
Module Connector Pitch 0.5mm


Operating Temperatures min max
Celsius 50°
Fahrenheit 32° 122°
Storage Temperatures min max
Celsius -25° 70°
Fahrenheit -13° 158°
Humidity min max
Non-condensing 40% 70%


Interface SPI


Foldable Tab Yes
Full Screen Update Time 15s
Time Between Updates 180s

Part Change Notice

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Product Update #11084: Red ePaper End-of-Life notice.

Products Affected: CFAP128296D0-0290, CFAP176264A0-0270, CFAP104212C0-0213, CFAP152152A0-0154, CFAP176264A0-E2-1, CFAP176264A0-E2-2, CFAP152152A0-E2-1, CFAP152152A0-E2-2, CFAP400300A0-0420, CFAP400300A0-E2-1, CFAP400300A0-E2-2, CFAP128296D0-E2-1, CFAP128296D0-E2-2
Date Issued: April 28, 2021
Summary: Red ePaper End-of-Life notice.
Description: These products will no longer be stocked at our facility or offered for sale on our website.
Reason: Due to quality issues with the red ink during storage, we have determined that we will no longer offer this line of products to our customers.
For reference only. For design purposes, please use the specifications in the datasheet.