Specification: Item Type: E Paper Display Material: LCD, PCB Size: 7.8in Gray Level: 2-16 Levels (1-4 Bits) Display Panel: Electronic Ink Screen Display Interface: High Definition Multimedia Interface Resolution: 1872x1404 (300DPI) Display Color: Black, White Viewing Angle: ＞170° Display Adjustment: Mode/Contrast Support Equipment: For Pi, PC Size: Approx. 127.6mm / 5.0in, Approx. 158.184mm / 6.2in, Approx. 173.8mm / 6.8in, Approx. 118.638mm / 4.7in, Approx. 81.05mm / 3.2in, Approx. 73.61mm / 2.9in, Approx. 42.30mm / 1.7in, Approx. 15.30mm / 0.6in Package List: 1 x Electronic Ink Screen 1 x High Definition Multimedia Interface Cable 1 x Mini High Definition Multimedia Interface Adapter 1 x Type-C Data Cable 1 x Riser Card Note: 1. Due to the limitation of the display principle, the electronic ink screen display has a low freshen rate (about 15Hz in A2 mode), which is suitable for office learning applications such as writing yard, editing documents, making tables, and browsing web pages. 2. The display method of the electronic ink screen is reflective, does not actively emit light, and has no blue light. It is a boon for people with dry eyes who are facing the computer for a long time and facing dry eyes and eye fatigue. 3. If you need to use it for entertainment or games and other scenes with high freshen rate requirements, it is recommended to use ordinary LCD monitors 4. The use of VGA interface is not supported (due to the analog signal output of the VGA interface, it may cause the screen to flicker or be distorted) 5. If your computer does not have a High Definition Multimedia Interface interface, please take a picture of the computer interface and send it to the customer service. We will assist you in judging and recommend the corresponding adapter