Features Support up to SSI CEB(12”x10.3”)/ SSI EEB(12”x13”)/E-ATX(12”x13”) Motherboard Dual Front 120mm fans are equipped with LED on/off switch. Allow to install front second layer fans to draw cool air deeper.(Internal side of HDD cage) Support Corsair H100 CPU cooler. Full black interior. Advanced cable management design. Advanced Cooling System : -Front First Layer 2x 120mm Red LED Fan (pre-installed) -Front Second Layer 2x 120mm Fan (option) -Rear 1x 120mm Fan (pre-installed) -Top 2x 120mm Fan (pre-installed) or 2x 140mm Fan (option) -Side 1x 230mm Fan (pre-installed) or 4x 120mm Fan (option) -Bottom 1x 120mm Fan (option) Screw-less design for 5.25” Devices. Easy to remove/install front 5.25” bay covers HDD trays support 3.5” or 2.5” HDD/SSD Easy-clean PSU filter. Top mounted IO ports– 2x USB 3.0,2x USB 2.0,Audio out,MIC in. Advanced Bottom-Mounted PSU Design.