Protection function: (For power outputs of+3.3V,+12V,+5.00V, and+5.00VSB) Overcurrent protection: When the output current reaches the current, the output is turned off. Short circuit protection: When a short circuit occurs in the output, the output is turned off. Environmental description: Working temperature/humidity -5 ℃ to 55 ℃/45% -75% Storage temperature/humidity -40 ℃ to+70 ℃/10% -90% Atmospheric pressure 86Kpa -106Kpa Other parameters: Working frequency: IC built-in oscillator (250-350) khz@vcc =12V Color: As Shown Material: PC+Plastic Package Contents: 1 adapter board kit 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.