20 PCS Heatsinks for Raspberry Pi 4 Model B, Aluminum Heat Sink Cooler Kit, with
Good Performance: These heatsinks can effectively dissipate heat from the device chip. 5 × 7 7 3 mm Aluminum Heatsinks. 5 × 7 7 6 mm Aluminum Heatsinks. 5 × 9 14 5 mm Aluminum Heatsinks. 5 × 14 14 4 mm Aluminum Heatsinks.