The Sun rack is another brand of case to mount servers into. In 2010 Sun was bought out by Oracle. The following is a list of specs from Oracle on their Sun rack cabinets.
Sun Rack Server by Oracle
Optimized for vertically dense applications
42RU high with two options: 1200mm deep Sun Rack II 1242 and Sun Rack 1242E rack; and 1058 mm deep Sun Rack II 1042 and Sun Rack II 1042E rack. These options provide a comfortable fit for most IT components, power, and cabling, all within 2 floor tiles of depth.
Compact PDUs with metering features
New, Zero RU, extremely easy to install Power Distribution Units (PDUs), with a choice from 5kVA up to 37kVA per power strip depending on your application. PDUs come with phase current metering features.
Adjustable 19" RETMA rails
RETMA rails easily adjust to provide the desired rail location for every application.
Optimized air flow
Cabinet doors provide 80% perforation, one of the highest levels of closed cabinet air flows.
Robust Enterprise Design
Designed and tested to one of the most stringent dynamic load requirements in the industry. The Sun Rack II can be shipped with up to 2215 lbs of equipment integrated into the rack.
Updated Industrial Design
An improved look-and-feel to complement the latest server and storage equipment from Oracle.