This is an E-Ink display HAT for Raspberry Pi, 2.7inch, 264x176 resolution, with embedded controller, communicating via SPI interface.Due to the advantages like ultra low power consumption, wide viewing angle, clear display without electricity, it is an ideal choice for applications such as shelf label, industrial instrument, and so on.Features1. No backlight, keeps displaying last content for a long time even when power down2. Ultra low power consumption, basically power is only required for refreshing3. Compatible with Raspberry Pi 2B/3B/3B+/Zero/Zero W4. Onboard 4x Keys5. SPI interface, for connecting with other controller boards like Raspberry/Arduino/Nucleo, etc.6. Onboard voltage translator, compatible with 3.3V/5V MCUs7. Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)Specifications1. Operating voltage: 3.3V/5V2. Interface: 3-wire SPI, 4-wire SPI3. Outline dimension: 85mm x 56mm4. Display size: 57.288mm x 38.192mm5. Dot pitch: 0.217 x 0.2176. Resolution: 264 x 1767. Display color: Black, white8. Grey level: 29. Full refresh time: 6s10. Refresh power: 24mW(typ.)11. Standby power: <0.017mW12. Viewing angle: >170 degree13. Weight: 0.036 kgPackage Contents1. 2.7inch e-Paper HAT x12. RPi screws pack (2pcs) x23. PH2.0 20cm 8Pin x1Specification: Package Weight One Package Weight 0.07kgs / 0.16lb One Package Size 9cm * 6cm * 2cm / 3.54inch * 2.36inch * 0.79inch Qty per Carton 720 Carton Weight 54.00kgs / 119.05lb Carton Size 54cm * 36cm * 40cm / 21.26inch * 14.17inch * 15.75inch Loading Container 20GP: 342 cartons * 720 pcs = 246240 pcs40HQ: 796 cartons * 720 pcs = 573120 pcs