High-Density Data Center Computer Cabinet

A computer server rack assembly comprising:

• a housing comprising a front space region, a rear space region, a front side, and a back side opposite to the front side, wherein the housing defines a front space region and a rear space region;
• an electric busbar vertically secured to the back side of the housing, wherein the electric busbar is configured to distribute power from a power source to one or more electronic computing devices;
• a first cooling manifold extending at least partially vertically and secured to the back side of the housing, wherein the first cooling manifold is configured to distribute coolant to at least one of the one or more electronic computing devices;
• a second cooling manifold extending at least partially vertically and secured to the back side of the housing, wherein the second cooling manifold is configured to distribute coolant to at least one of the one or more electronic computing devices;
• and
• a plurality of rail panels disposed within the front and back sides of the housing and configured to support the one or more electronic computing devices.