1U rackmount chassis , up to 12"(W) x 9.6"(D) ATX, Internal: 2x 3.5', 2x 2.5' 7mm, Front: 2x USB 3.0, 3x 4028mm fan, 250W single power supply • Front ventilation for superior cooling • Front access dual USB ports • 3 x 4028 fans for CPU cooling • Short-depth design for space-critical application • Equipped with 250W power supply