| 摘要 |
PROBLEM TO BE SOLVED: To load more HDDs(hard disk drives) while keeping maintainability. SOLUTION: Interface substrates 200 are arrayed on a mother board 500. Each interface substrate 200 is provided with two connectors, and two HDD caddies 100 are loaded on one interface substrate. Thus, without changing the width of a casing 810, HDD caddies 100 twice larger in number are loaded on the casing 810. The connector of the interface substrate 200 for connection with the HDD caddy 100 is arranged in the side of the front side of the casing 810. Therefore, the HDD caddy 100 is attached/detached from the front side, and maintainability is kept.
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