ITEM NAME:LED Light GPIO Extension Board Dual Cooling Fans for Raspberry Pi 4B/3B+ Product Description Description: Raspberry Pi 4B LED Light GPIO Extension Board Dual Cooling Fans Module for Raspberry Pi 4B/3B+/3B/3A+ Feature: 1. Compatible with Raspberry Pi 4B/3B+/3B/3A+. 2. Compatible with all versions of Raspberry Pi Definition. 3. Pins are clearly defined through screen printing to fully display GPIO functions. All GPIO pins are pulled out, so when the Raspberry Pi cools down, its development function will not be affected. 4. Dual cooling fans are designed for active cooling mode, which can dissipate heat in time. 5. LED and fan have independent switches, which can control separately, which will not bring a dazzling feeling when used at night. Specification: Product size: 65x56x24mm/2.56x2.2x0.94in Package size: 120x70x40mm/4.72x2.76x1.57in Net weight: 43g Gross weight: 45g Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement. Included: 1 X Expansion Board Module with Dual Fans and LED 4 X Copper Column(column double pass M2.5 * 17mm/0.67in) 8 X Screws(M2.5*5 countersunk head screws) 1 X Screwdriver 1 X Plastic Bottom Base 2 X Raspberry Logo Labels 4 X PCB Pads.Pins are clearly defined through screen printing to fully display GPIO functions. Compatible with Raspberry Pi 4B/3B+/3B/3A+. Compatible with all versions of Raspberry Pi Definition. 2 X Raspberry Logo Labels.