CoolerMaster Silencio S400.The Silencio is a silent case that makes no compromises in thermal performance. Sound dampening material surrounds the system build, rubber padding cushions all included fans, and a removable cover shields noise that escapes from the top panel. For optimal noise reduction, the steel side panel features sound dampening material.For demanding systems, the top panels Sound Dampening Cover can be removed for increased ventilation. Paired with the front panels ventilation, directionally taking in air through the mesh, silence can be accomplished without sacrifice. The subtle ventilation takes in air from three sides of the sound-dampened front door, with the mesh filter aimed toward the bottom for an efficient intake of air.FEATURES- Sound Dampening Material: Sound dampening material minimizes noise from the pre-installed fans, the power supply, all steel panels, the steel front door, and all storage mounting points for 2.5 and 3.5 drives.- Removable Sound Dampening Cover: The top cover can be removed for increased ventilation or kept in place to reduce noise.- Sound-Dampened Steel Side Panel: For optimal noise reduction, the steel side panel features sound dampening material.- Silencio Fans: Two Silencio FP 120mm PWM fans are pre-installed with rubber padding to reduce noise. To connect additional fans, one 4pin 1-to-3 splitter is included. - Reversible, Steel Front Door: The sound-dampened, steel front door features a reversible mounting system that is capable of opening in two directions.SPECIFICATIONS- Product Name: Silencio S400 (w/ Steel Side Panel) - Exterior Colour: Black - Materials: Steel, Plastic, Sound Absorbing Material, Sound-Dampened Steel - Dimensions (LxWxH): 418 x 210 x 408mm - Motherboard Support: Mini-ITX, Micro-ATX - Expansion Slots: 4 - Drive Bays: 1 x 5.25\", 4 x 3.5 HDD, 4 x 2.5 SSD - I/O Panel: 2 x USB 3.0, 1 x 3.5mm Headset Jack (Audio + Mic), SD Card Reader (Supports SD & MMC Cards) - Pre-installed Fan(s): Front 1 x 120mm, Rear 1 x 120mm - Front Fan Support: 120mm x 2 / 140mm x 2 - Top Fan Support: 120mm x 1 / 140mm x 1 Or 120mm x 2 / 140mm x 2 (remove ODD cage) - Rear Fan Support: 120mm x 1 - Front Radiator Support: 120/140/240 / 280mm(remove & reinstall ODD bracket to mount 280mm radiator, may interfere with HDD mounted below ODD bracket) - Top Radiator Support: 120mm, 240mm (240mm requires removal of ODD cage)- Rear Radiator Support: 120mm- CPU Cooler Clearance: 167mm - Power Supply Clearance: 325mm (w/o front radiator & HDD cage), 140mm (HDD cage in backmost position) - Graphics Card Clearance: 319mm - Cable Routing: Behind MB Tray 20mm - Dust Filters: Top, Front, Bottom - Power Supply Support: Bottom Mount, ATX PS2