This 1U 2-blade short server chassis is a sister product of R108 which was modified to make bigger open hole for MB I/O ports. It can fit into  all standard mini-ITX MBs suitable for 1U system without modifications of the I/O panels. 

Application: Server, Hosting Server 

Key Features: 
1U server supports 2 computing blades with mini-ITX MB 
Each blade supports 1 x mini-ITX MB + 2 x 2.5” HDD + 1 x PSU 
Support back-to-back installation 
Support all standard mini-ITX MBs suitable for 1U system 

Spec:
Chassis Material: SGCC Sheet Metal 
Form Factor: 1U Rackmount supports 2 Computing Blades with mini-ITX MB 
Power Supply: Flex ATX PSU in Each Blade 
Drive Capacity: 2 x 2.5” HDD in Each Blade 
Cooling Fan: 2 x 40*40*28mm or 2 x 40*40*20 Fan in Each Blade 
LED Indicator: Power on, HDD 
Button Power, Reset 
Dimension(DxWxH): 350 x 430 x 44mm