Patent attributes
A server includes a server host including a tray, a main circuit, a left circuit board, a right circuit board, a rear circuit board, several first hard disk drives, several second hard disk drives and several third hard disk drives. The left, right and rear circuit boards are located at the left side, right side and rear side of the main circuit board, respectively, and all electrically connected to the main circuit board. The first hard disk drives are electrically connected to the main circuit board via the left and right circuit boards. The second hard disk drives are located at the left and right side of the rear circuit board. The third hard disk drives are located above the rear circuit board, and the second and third hard disk drives are electrically connected to the main circuit board via the rear circuit board.