[feature x735 v3.0] 1. The DC connector is changed from DC5525 to DC5521, which supports DC 6v-30v input (DC port only). 2. You can still 5v psu via type-c or -usb port. 3. Remove the locking switch connector and replace it with an xh2.54 5v connector; the locking switch is no supported. 4. the fan jumper of the L-SW jumper to control the pwm fan; (some users cannot make the pwm fan work through the python code, or the python code does not support some operating systems, in this case, please remove jumper the fan to run the fan at full speed) 5. The x735 is an all-in-one expansion card for all current models for a 40-pin header. It provides smart and safe management, safe shutdown and complete through software, and a silent 4p pwm fan allows you to for in different conditions. 6. The x735 also retains a 40-pin header can be stacked with other accessory boards for for enhanced applications. 7. At the time, the x735 reserves a 4pin switch port (momentary switch), which can be connected to an external switch to safely control the on/off color:Black Material:PCB+Metal Package Contents: 1 x X735 V3.0 management expansion board 1 x screw kit Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.