Raspberry Pi 3 B+ Kit. IMPORTANT NOTES: 1. If you see a lightning bolt symbol with a rainbow splash screen upon boot it indicates that you are using an operating system that is NOT compatible with the "B+" model. It is NOT related to the power supply voltage. 2. The "B+" model requires "B+" compatible software to operate (such as NOOBS 2.7.0 or later). Please ensure you are using a compatible operating system or the board will not boot.