1U Rackmount Chassis with 4 Drive bays, supports Mini-ITX Motherboard , and up to 520W ATX Power supply PCIe x16 slot Riser 2.5" space for SSD or HDD Two 4cm ball bearing cooling fans and optional four more fans Two USB 3.0 ports Four 3.5" or 2.5" SATA HDD mobile racks The RCK-104M is a convenient design for 1U Rackmount Chassis to enables the integration of Firewall Server, Proxy Server, VPN Gateway system and etc. RCK-104M ingenious mechanical design for the slim depth of 455mm which gives consideration to short dimension, superior heat dissipation up to six fan(4cm). It is a compact slim chassis can accommodate FOUR HDD Mobile Racks for 3.5" or 2.5" SATA HDD and ONE 2.5” internal space for SSD or HDD to expand your storage capacity. Equipped to support Mini-ITX motherboard for core i3/i5/i7 processor. The RCK-104M proves to be a perfect choice for sub-racks and short rack cabinets. duty steel construction with only 455 mm in depth  Supports Mini-ITX motherboard  (4) 3.5" or 2.5 SATA HDD mobile racks  (1) 2.5" space for SSD or HDD  (2) Front USB 3.0 ports  (2) 4cm ball bearing cooling fans and optional four more fans  PCIe x16 riser card  Supports 1U up to

 Power On/Off Status Operating Temperature Board Support Drive Bays  (4) 3.5" or 2.5” external Drive bays Expansion  (1) PCIe x16 slot Power Supply  1U ATX power supply Cooling System  (2) 4cm ball bearing cooling fans  (4) Extra space for additional 4cm fan I/O Port  (2) USB 3.0 on front panel Switch  On/Off Power Switch  Reset Switch 1U chassis for Mini-ITX motherboard with (4) 3.5” or 2.5" Drive bays and (1) 2.5” space 1U chassis for Mini-ITX motherboard with (4) 3.5” or 2.5" Drive bays and (1) 2.5” space , and 300W ATX PSU 1U chassis for Mini-ITX motherboard with (4) 3.5” or 2.5"...