Image forming apparatus

An image forming apparatus comprising:

• a controller substrate configured to control an image forming portion for forming an image;
• a first mounting portion configured to mount a first hard disk drive for storing data by inserting the first hard disk drive into said first mounting portion in a horizontal direction;
• a second mounting portion provided partly overlapping with said first mounting portion as seen in a vertical direction and configured to mount a second hard disk drive for storing data by inserting the second hard disk drive in the same direction as an inserting direction of the first hard disk drive into said first mounting portion;
• a first connector configured to electrically connect said controller substrate and the first hard disk drive mounted in said first mounting portion, at a position downstream of the first hard disk drive with respect to the inserting direction, said first connector being fastened to said first mounting portion with a screw threaded in the vertical direction;
• and
• a second connector configured to electrically connect said controller substrate and the second hard disk drive mounted in said second mounting portion, at a position downstream of the second hard disk drive with respect to the inserting direction, said second connector being fastened to said second mounting portion with a screw threaded in the vertical direction, wherein said second connector is shifted toward a side downstream of said first connector in the inserting direction so as to be prevented from overlapping with said first connector as seen in the vertical direction,
• wherein in said second mounting portion, a through hole extending in the vertical direction is formed at a position where said through hole overlaps with said first connector as seen in the vertical direction.