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

(EOL) 4.2" 3-Color ePaper Display

Part Number: CFAP400300C0-0420

4.2" Black, White, Yellow ePaper Display Module. 400x300 pixels. ePaper displays are perfect for applications that require super low power and infrequent updates such as electronic shelf labels, tags or static advertising.

The beauty of ePaper modules is that they only require power when being updated. Once the screen is displaying the graphic of your choice, you can disconnect the display entirely from its power source and it will continue to display indefinitely. Read more about how ePapers can display an image with no power on our blog

This ePaper is 3 colors; white, black and yellow. 4.2" Diagonal measurements and 400x300 pixel resolution.

This ePaper display DOES NOT support partial updates.

Use our free ePaper software to prepare your bitmap image for this display.

Adapter / Breakout Board
Want to get this display up and running quickly with an Arduino or Seeeduino? We have this ePaper Adapter Board that makes connecting our ePaper simple and fast or check out our kits below.


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
Weight 16g
Pin Count 24

Optical Characteristics

View Angle Ultra-Wide°
Foreground Color Black / Yellow
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 40°
Fahrenheit 32° 104°
Storage Temperatures min max
Celsius -25° 60°
Fahrenheit -13° 140°
Humidity min max
Non-condensing 40% 70%


Interface SPI


Foldable Tab Yes
Full Screen Update Time 28s
Time Between Updates 180s

Additional Options

Want to get a head-start on your ePaper display solution? Purchase this ePaper screen with an Arduino Development kit or ePaper Adapter kit.

Part Change Notice

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Part Change Notice #11091: No Longer Stocking Color ePapers

Products Affected: CFAP400300C0-0420, CFAP104212E0-0213, CFAP128296E0-0290, CFAP128296E0-E2-1, CFAP128296E0-E2-2, CFAP152152B0-0154, CFAP152152B0-E2-1, CFAP152152B0-E2-2, CFAP104212E0-E2-2, CFAP104212E0-E2-1, CFAP400300C0-E2-2, CFAP400300C0-E2-1
Date Issued: June 25, 2021
Summary: No Longer Stocking Color ePapers
Description: Once the current inventory has been depleted, this product will no longer be offered by Crystalfontz.
Reason: Crystalfontz is no longer stocking color ePapers due to the shelf-life and storage requirements.
For reference only. For design purposes, please use the specifications in the datasheet.