Up to four fans can be mounted including one back standard-equipped fan. Supports bottom PSU installation for effective cooling of PSU & inner space of case luxurious interior with black coating finishing touch.. USB (Universal Serial Bus) 3.0 ports, audio socket, power & rest buttons set in the front for user convenience. Tube apertures are provided at the rear of the case for convenient water cooling set-up & maintenance. Efficient layout allows the installation of Micro-ATX/ Mini ITX main board & VGA/PSU/ODD, despite of its slim design. Dust filters installed on the front, side & bottom prevent dust from entering. 250mm~300mm high performance VGA card can be installed. Safe edge molding for safer installing environment. Easily install HDD & SSD at the same time. Anti-slip rubber at the bottom of the case & the PSU helps to eliminate vibration sound. No need to touch the M/B for CPU cooler replacement through CPU cooler mounting holes. Cable holes also provided for neat cable management Provides spacious interior with 4 PCI extension slots. Specifications Enclosure Type ATX Mini Tower Case Dimensions 189 x 427.5 x 364mm Motherboards Micro ATX / Mini ITX Power Supply Unit Standard ATX / ATX 12V PCI/AGP Card Compatiblility up to 250~300mm Expansion Slots 4 slot Color Black Drive Bays 5.25" External Bay x 1 3.5" Internal Bay x 2 2.5" Internal Bay x 3 Cooling Components (Fans) Rear 1 x 92 (80)mm Fan (Standard) Front 1 x 120mm Fan (Optional) Side 2 x 120mm Fan (Optional) I/O Ports 1 x Microphone, 1 x Headphones, 1 x USB (Universal Serial Bus) 3.0, 1 x USB (Universal Serial Bus) 2.0