The "E-Ink Display Raw Panel - 2.9" (296x128) is only the display itself and does not come with a controller PCB.
If you're looking for an eInk/ePaper display for your Raspberry Pi or Raspberry Pi Zero, look no further! Waveshare offers these fantastic small eInk/ePaper displays in 2.9", 2.13", and 1.54" sizes, so you'll definitely find the perfect fit for your project.
E-Paper/eInk displays are designed to mimic the appearance of ink on paper. Unlike regular displays that lose their image when the power is cut, eInk displays can retain text and images indefinitely even without power. As a result, ePaper displays have extremely low power consumption, a wide viewing angle, and are designed to have minimal reflections in sunlight.
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