Waveshare 3" E-Paper Module (G), 400 x 168

Waveshare (22758) 3 Inch E-Paper Module (G), 400 x 168, Red/Yellow/Black/White

Features:

• No backlight, keeps displaying last content for a long time even when power down
  
• Ultra low power consumption, basically power is only required for refreshing
  
• SPI interface, for connecting with controller boards like Raspberry Pi/Jetson Nano/Arduino/STM32, etc.
  
• Onboard voltage translator, compatible with 3.3V/5V MCUs
  
• Comes with development resources and manual(driver board schematic, examples for Raspberry Pi/Arduino/STM32)

Specifications:

• Dimensions: 3 inch
  
• Driver doard dimensions: 88,5 mm x 41 mm
  
• Display dimensions: 70,4 mm x 29,568 mm
  
• Outline dimensions (screen only): 86,4 mm x 39,2 mm x 0,85 mm
  
• Operating voltage: 3,3 V / 5 V (5V is required for power and signal)
  
• Communication bus: SPI
  
• Dot pitch: 0,176 mm x 0,176 mm
  
• Resolution: 400 x 468
  
• Display color: Black, White, Yellow, Red
  
• Grey scale: 2
  
• Refresh time: 16s
  
• Refresh power: < 60 mW (typ.)
  
• Standby current: < 0.01uA (almost 0)    

Links:

• Wiki