Ultra-thin ICE Tower cooler compatible only with RPi 4B. Includes an ultra-thin fan and supports fan speed adjustment. The speed can be controlled by programming the RPi's GPIO pins, and the heatsink is ultra-thin. Structure: ICE tower style, 3x4.5mm copper tube for super heat dissipation. Rated power: 0.6W @5V, 0.12A; Fan: 4007 fan, 5300±10%RPM. ✾The photos are for illustrative purposes. Please check the actual product photos for the product condition♪ ／ Price negotiation ★ Welcome ★ ＼ ＊Instant purchase is welcome, silent purchase at midnight is OK ◎ ＊First come, first served for single items ＊Welcome to bulk purchases, please feel free to comment ＊Free shipping! ・Please understand and purchase with home storage and simple packaging ( ⁎ᵕᴗᵕ⁎ ) ※If there is a defective product, please consult us before evaluation. We cannot respond after evaluation. #Yukko's product list is here ✨☜ TUOPUONE Ultra-thin ICE Tower Cooling Fan Compatible with Raspberry Pi 4B, 4.5mm Copper Tube, Adjustable Speed, Strong Heat Dissipation, Female Pin Header Not Included 14-24 0715