4.2" Black & White ePaper Display

Part Number: CFAP400300B0-0420


Quantity Price
1 $27.96
10 $23.44
20 $22.59
50 $21.74
100 $21.57
200 $21.40
500 * $21.23
1000 * $21.06
* Contact us about potential lead times.

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Crisp, high-contrast, 4.2" Black & White ePaper Display. Perfect for when you need to show something for a long time (think shelf labels or signage) while using minimal power. Once this display is updated, you can remove all power connections and it will continue to display indefinitely! With ZERO power!

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.

The ZIF connector you need is a standard 24-position 0.5mm pitch. Here are some possible connectors:
Top Connector
Bottom Connector


For reference only. For design purposes, please use the specifications in the datasheet.

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 4.200"
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
Flexible Cable (FFC/FPC) length
millimeters 18.5
inches 0.728
Weight 16g

Optical Characteristics

Glass Type ePaper
View Angle Ultra-Wide°
Foreground Color Black
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
Supply Current Minimum 0.005mA
Supply Current Maximum 8mA


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

*Suggest a Correction

Additional Options

Buy this 4.2" ePaper with an Arduino based development board and/or an ePaper adapter board to get your project off the ground quickly.

4.2" Arduino ePaper Development Kit
Part Number: CFAP400300B0-E2-2

4.2" Black and White ePaper display with an ePaper adapter board and an Arduino based development board for quickly demonstrating the functionality of this super-efficient EPD display.

Quantity 1
Price $61.04
4.2" ePaper Display with Adapter Board
Part Number: CFAP400300B0-E2-1

Buy this 4.2" ePaper display with an ePaper adapter board to quickly prototype your ePaper Arduino based project. Simply wire the adapter to your 3.3v Arduino and run our demonstration code.

Quantity 1 10 20 50 100 200 500 * 1000 *
Price $37.78 $32.85 $32.58 $32.32 $32.06 $31.80 $31.53 $31.07

For reference only. For design purposes, please use the specifications in the datasheet.