Thermal paste enhances heat dissipation Three thermal pastes enhance heat dissipation performance GPIO power supply for motherboard No need for separate power supply for 3.5-inch display, convenient and fast A radiator fan can be installed to enable the 3.5-inch screen and radiator fan to be used at the same time Supported systems: Raspbian / -mate / -linux system Made of high-quality materials Size: 3.5 inches Type: TFT Backlight: LED Power consumption: 5V0.16A Refresh rate: less than 20 frames Resolution: 480x320 Interface type: SPI Touch type: resistive touch Colour:Black Material:ABS Package Contents: 1x Display 1x 32G memory card (refresh rate 20 frames) 1x Touch Screen Pen Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.