ITEM NAME:Aluminum Alloy Case with Cooling Fan Metal Enclosure Box for Raspberry Pi 4 W5Y4 Aluminum Alloy Case with Cooling Fan Metal Enclosure Box for Raspberry Pi 4 W5Y4 This is an aluminum alloy metal housing with perfect cooling fan for Raspberry Pi 4 only model B, All ports and slots of the case can perfectly match Raspberry Pi 4, including USB-C power supply, Micro-Hdmi ports, GPIO Cale interface ... Cooling system: cooling holes with cooling fans, the Wlan or Bluetooth signal is almost not weakened. Material: aluminum alloy Color: silver size: 9.5x6x3cm Package Contents: 1 x aluminum alloy case 1 x cooling fan 1 x package screws Note: Does not include raspberry pi 4 Model b