iMicro ATX Mid Tower Case CA-B813USB ENGLI Case: CA-IM813BK; Case Type: Mid Tower; Color: Black/Silver; M/B Type: Micro ATX, ATX; Drive Bays: 9; External Bay: 4x 525", 1x 35"; Internal Bay: 4x 35" Expansion Slots: 7; Cooling System: 1x 80mm Rear Fan (Optional); 1x 80mm Side Fan (Optional); Side Air Duct; Front I/O Panel: 2x USB Ports; 1x Speaker; 1x Mic; Power Supply: 400W ATX Power Supply w/20+4pin Connector USB Keyboard: KB-US819EB; Compatible with Windows 95/ 98/ NT/ ME/ 2000/ XP; Switch Travel Distance: 4;  04 mm; Peak Force: 55  5 g; Life Cycle: 10,000,000 times; Power Supply: +5V DC, and lt; 200mA USB Mouse: MO-5013U; Resolutions: 800 dpi; 3D Optical Mouse; Ergonomically Shaped; Compatible with; Windows 98/ 2000/ ME/ XP; Optical Scan Rate: 3000 F/sec; Speaker: SP-IMD168B; Driver Unit: 225 inch Power Interface: USB 20; THD: 02%; Impedance: 6 Ohm; Frequency Response: 160Hz ~ 20KHz Case: CA-IM813BK; Case Type: Mid Tower; Color: Black/Silver; M/B Type: Micro ATX, ATX; Drive Bays: 9; External Bay: 4x 5.25", 1x 3.5"; Internal Bay: 4x 3.5" Expansion Slots: 7; Cooling System: 1x 80mm Rear Fan (Optional); 1x 80mm Side Fan (Optional); Side Air Duct; Front I/O Panel: 2x USB Ports; 1x Speaker; 1x Mic; Power Supply: 400W ATX Power Supply w/20+4pin Connector USB Keyboard: KB-US819EB; Compatible with Windows 95/ 98/ NT/ ME/ 2000/ XP; Switch Travel Distance: 4;  0.4 mm; Peak Force: 55  5 g; Life Cycle: 10,000,000 times; Power Supply: +5V DC, &lt; 200mA USB Mouse: MO-5013U; Resolutions: 800 dpi; 3D Optical Mouse; Ergonomically Shaped; Compatible with; Windows 98/ 2000/ ME/ XP; Optical Scan Rate: 3000 F/sec; Speaker: SP-IMD168B; Driver Unit: 2.25 inch Power Interface: USB 2.0; THD: 0.2%; Impedance: 6 Ohm; Frequency Response: 160Hz ~ 20KHz