MasterBox Q300L Features: High Flexibility for System Building Minimized Dimension with ATX PSU Support Patterned Dust Filter Clean Routing Space Excellent Thermal Performance Edge-to-Edge Acrylic Transparent Side Panel Vertical and Horizontal position Specifications: Color(s) Black Materials Steel, Plastic Dimensions (L x W x H) 387 x 230 x 381mm Motherboard Support Mini-ITX, Micro-ATX Expansion Slots 4 5.25" Drive Bays 0 3.5" Drive Bays 1 2.5" Drive Bays 2 I/O Panel - USB Ports 2x USB 3.0 I/O Panel - Audio In / Out 1x 3.5mm Audio Jack, 1x 3.5mm Mic Jack Pre-installed Fans - Rear 1x 120mm Fan Support - Front 2x 120/140mm Fan Support - Top 2x 120mm Fan Support - Rear 1x 120mm Fan Support - Bottom 1x 120mm Radiator Support - Front 120 / 240mm Radiator Support - Front 120mm Radiator Support - Rear 120mm Clearance - CPU Cooler 159mm Clearance - PSU 160mm Clearance - GFX 360mm Dust Filters Bottom Power Supply Support Bottom Mount, ATX PS2 Warranty 2 years Size Mini Tower Series MasterBox Series