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
FPGA Heat Sinks for SOMs - iWave Systems | Mouser
What is Heat Sink and its importance?
What is a Heat Sink, and How Does it Work?
What is a Heat Sink, and How Does it Work?
Amazon.com: 4PCS Heat Sink Kit 40mmx40mmx20mm Aluminium Heatsink Cooler for Cooling VRM GPU Stepper Driver 3D Printers Stepper Motor NEMA 17, TEC1-12706 Thermoelectric Peltier Led : Electronics
Amazon.com: Awxlumv Large Aluminum Heatsink 69 x 69 x 36mm / 2.71" x2.71" x 1.41" Peltier Heat Sink Cooling 27 Fin Radiator GPU Backplate Heatsink for IC Module, PC Computer, Led, PCB : Electronics
Aluminum SMT Heat Sinks 10 Pack - 0.25x0.25 x 0.15 tall : ID 1515 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits