“Was sceptical a little bit would work well but does keep temperature consistently down. Can't fault it for price and footprint it takes up. Glad bought spares.”
“Great little heatsink. Easy to fit and keeps my Raspberry Pi 3b cool while it runs pi.hole and pivpn software for me 24/7. I can also confirm that this fits under the official power-over-ethernet hat, sitting just under the fan to increase the effect of active cooling.”