Official Raspberry Pi Black 4 in 1 Heat Sink Set Aluminum for Pi 4B

Specifications:

• Made of high quality Aluminum, good thermal conductivity
• Reduce the risk of hardware failure due to overheating
• Maximize surface area Designed in contact with the cooling air.
• Widely used for computer, Power Transistor, FET, IC, Power Amplifier, Voltage Regulator, MOSFET, SCR etc.
• Very thin and Strong 3M adhesive tape on the back side. Easy to stick and thermal efficient.