Innovation First, Inc. 1UCMA-137 1U Cable Management Arm 19" 28.5"-33" computer accessory
- Product Type:Cable…
- Panel Width:19" Rac…
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yahboom
Quiet 40-pin cooling fan with programmable RGB and OLED display for Raspberry Pi temperature control
The Yahboom cooling fan attaches directly to the 40‑pin GPIO header on Raspberry Pi 4B, 3B+ and 3B boards. It targets hobbyists and educators who want active temperature management without soldering or extra wiring. The unit also breaks out the header so other HATs or sensors can still be connected.
Three high‑brightness RGB LEDs sit on the expansion board and can be coded to show different colours for different temperature ranges. An OLED module may be included as a random gift. The fan speed is adjusted in software based on the board temperature, and the driver package works with all standard Raspberry Pi OS images.
This kit upgrades builds that rely on bare heatsinks or constant‑speed fans by adding temperature‑controlled, programmable cooling. The jump is worth it when you need quieter operation, visual temperature feedback and the ability to keep the GPIO header free for other peripherals. Not for users who only need a simple plug‑and‑spin fan without writing or running any code.
| CPU Type | Other |
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The fan connects directly to the 40-pin header with no wiring or wasted I/O ports, and the board also expands the header so other devices can still be attached.
It sits on the 40-pin GPIO header as a HAT, adding a fan and RGB OLED module above the board while leaving the I/O port layout unaffected.
You must run the Yahboom-provided program after powering on; until that script runs the RGB lights illuminate but the fan stays stationary.
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