4.2" Black & White ePaper Display

Part Number: CFAP400300B0-0420


Quantity Price
1 * $28.93
10 * $23.52
20 * $22.74
50 * $21.97
100 * $21.65
200 * $21.50
500 * $21.34
1000 * $21.19
* Contact us about potential lead times.
Components worth considering
4518 ePaper Adapter Board
Faster development $10.16 ea.
4626 24 Position, 0.5mm Pitch, Gold, FCC FPC ZIF Connector
Add 5 ZIF Connectors $0.84 ea.
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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! Read more about how ePaper displays work on our blog.

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 complete kits below

*This epaper 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 4.2"
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

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
Full Screen Update Time 3s
Time Between Updates 180s

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 inch 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 $65.92
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 $40.80 $35.48 $35.19 $34.91 $34.62 $34.34 $34.05 $33.56
For reference only. For design purposes, please use the specifications in the datasheet.