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Raspberry Pi 3 Model B+ Heat Sink | 2 pcs Aluminum + 1 pcs Copper Heatsink for Raspberry Pi 3 Model B plus / 3B / 2B / B+ – Geekworm
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Aluminum Heat Sink for Raspberry Pi 3 or 4 - 15 x 15 x 15mm : ID 3082 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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