Sliding apparatus and server casing using the same

A server casing comprising:

• a chassis comprising a blocking member;
• and
• a sliding apparatus comprising:
• a first fastening plate;
• a second fastening plate parallel with the first fastening plate and mounted to the first fastening plate;
• a sliding plate configured to be slidably connected to the second fastening plate and be received between the first fastening plate and the second fastening plate;
• a locking member comprising a first end and a second end opposing to the first end;
• wherein the first end is rotatably connected to the second fastening plate and comprising a locking portion, the second end is connected to the sliding plate;
• when the sliding plate slides on the second fastening plate, the sliding plate drives the first end to rotate through the second end, and the first end drives the locking portion to move between a locking position, where the locking member is locked by the blocking member, and an unlocking position, where the locking member is unlocked by the blocking member.