Includes 1 piece raspberry pi quite 25mm 3.3V-5V DC fan and heatsink set for Raspberry Pi 5, Raspberry Pi 4 model B and Raspberry Pi 3 model 3 B+. These pure aluminum (4pcs) and copper (1pc) heatsink include pre-applied heat conductive adhesive tape for optimum heat transfer. These heatsink kit can be applied in other electronics and robotics project to cool processor, regulators, VRAM VGA RAM, IC Chips, MOSFET SCR, Southbridge, Northbridge DIY etc. Package includes: 1pc 0.98"v0.98"x0.52" (25x25x13.5mm) quite dual speed 3.3V / 5.0V DC fan + 1pc aluminum heat sink: 0.56 x 0.39 x 0.23 inch (14mm x 10mm x 6mm) (L*W*H); 1pc aluminum heat sink: 0.35 x 0.35 x 0.19 inch (9mm x 9mm x 5mm) (L*W*H); 1pc aluminum heat sink: 0.27 x 0.27 x 0.25 inch (7mm x 7mm x 6.5mm) (L*W*H); 1 pc copper heat sink: 0.59 x 0.59 x 0.02 inch (15mm x 15mm x 0.5mm) (L*W*H)