for B ONE+ Aluminum Case Housing the Adapter Plate Cooling Fans

Demo Board Type: ARMModel Number: aluminum case housingRemovable Top and GPIO RecessNeat GPIO Recess Along with Magnetic Removable Top, Both Aesthetic and Protective, There're Even Clear Pin Labels and Color-Coded Header, Easier to UseAmazing Temperature ManagementThe Extension Pillars Makes The Aluminum Case Become A Big Heatsink to Transfer Heat From The Board, Combined with The Cooling Fan and Multi Airflow Vents, Cooling Effect Can Not Be BetterSafe & Handy Power ButtonDedicated Power Button, Combined with One-Line Script, to Turn The Computer On \/ Off While Ensuring The Stored Files Are Safe, Also Supports Customized FunctionEasy Assembly without Messy WiringComes with Two PCB Boards to Simply Build It Up, No Messy Wiring, No Wrong Connection, More Stable, More Safecolour:blackmaterial:MetalPackage Contents:1 x Protective Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.