Amazon.com: LoveRPi Active Cooling Media Center PC Case with Fan for Raspberry Pi 3 Model B+, Libre Computer Board, ASUS Tinker Board (Black) : Electronics
www.bitkistl.com: Odroid XU4 features in detail
80x80x10.8mm cooling fan with 2pin connector – ODROID
92x92x25mm DC Cooling Fan w/ PWM, Speed Sensor (Tacho) – ODROID