Introducing the DAN Cases A4-SFX, the world’s smallest gaming tower case. Complete with Core i7 processors, this compact case is perfect for small form factor enthusiasts. The A4-SFX has a 2.5-inch drive bay, a USB 3.0 20-pin internal connector, a 3M twin axial riser cable, a USB 3.0 female port, and a 2.5-inch HDD/SSD front mount point. Working with a Mini-ITX motherboard, each component of the A4-SFX uses fresh air from outside the case to cool itself down as hot air moves to the top and exits the case without an extra fan. This unique construction keeps the case lightweight and efficient which is perfect for taking on the go as the A4-SFX measures just 205mm tall, 112mm wide, and 327mm deep and weighs just 1.25kg.