SuperMicro SuperChassis 731i-300B, Mini Tower, Suits Micro ATX MB, 2 x Front USB 2.0, 2 x 5.25' HDD bays, 4 x 3.5' HDD Bays, No PSU, Black

Form Factor Mini-Tower & chassis support for max. motherboard size - 9.6' x 9.6' micro-ATX Processor Support Supports single Intel® / AMD processor Expansion Slots Supports 4x full-height, full-length I/O expansion slots Drive Bays Internal 4x 3.5' tool-less HDD trays SAS or enterprise SATA HDD only recommended External 2x 5.25' external drive bays 1x 3.5' external drive bay (OEM option) Front Panel Buttons Power On/Off button LEDs Power LED Hard drive activity LED Network activity LED System Overheat LED Ports 2x Front side USB ports (USB 2.0 ready) PSU No