| 摘要 |
A rack assembly includes a nineteen-inch sub-assembly coupled to a four-inch extension that comprises two substantially closed side panels adjacent to each other, two substantially open sides adjacent to each other, a closed top and bottom, a plurality of mounting flanges for attaching the extension to a nineteen-inch sub-assembly and a plurality of embossments for receiving mounting hardware for installing the sub-assembly and extension into a twenty-three-inch rack. The four-inch extension is formed not only to allow a nineteen-inch rack sub-assembly to be installed in a twenty-three-inch rack, but also is formed to conduct air exhausted from a side of the nineteen-inch sub-assembly towards a rear end of the twenty-three-inch rack.
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