Changes

* 2 x Steel Mounting Fixer (Fit for Raspberry Pi 3B+）* 2 x Steel Mounting Fixer (Fit for Raspberry Pi 4B)* 2 x M2x4 Screws* 4 8 x M2.5x6 Copper sticks* 6 x M2x6 Screws

* 4 x M2.5x4 screws* 3 x Thermal TapeTapes

* 2 x Steel Mounting Fixers (For 3B/3B+/4B)* 1 x Acrylic Bracketprotection panel* 1 x Instructions<span style="color:red>Note: The Raspberry Pi 4B motherboard is not included in the packing list.</span> ==FAQ=='''Q1: Can it be install to my retroflag case?''' A: No, the dimension is too big.  '''Q2: How many degrees can be decreased ?''' A: We've tested it at room temperature 25℃, it can decreased about 40℃.  '''Q3: Does it easy to assemble?''' A: Yes, it is very easy to install, we've provided an instruction for you.  '''Q4: How to install with Raspberry Pi 4 Model B'''A: # Fixed the steel mounting fixer to radiator's heat dissipation cube with M2.0 screws # Fixed the steel mounting fixer to Raspberry Pi 4B’s mounting hole with M2.5 copper stick, and please make sure the heat dissipation is contact to CPU shield properly. # Fixed the copper stick to Raspberry Pi with M2.5 nuts. # Connect the red wire to GPIO 5V pin and black wire to GPIO GND pin.   '''Q5: How to install with Raspberry Pi 3 Model B+'''A: # Fixed the steel mounting fixer to radiator's heat dissipation cube with M2.0 screws# Fixed the steel mounting fixer to Raspberry Pi 3B+’s mounting hole with M2.5 copper stick, and please make sure the heat dissipation is contact to CPU shield properly.# Fixed the copper stick to Raspberry Pi with M2.5 nuts.# Connect the red wire to GPIO 5V pin and black wire to GPIO GND pin.