Major difference between QQ2440 and MINI2440

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MINI2440:
1. Ethernet Chip DM9000
2. User Button Number 6
3. CMOS Camera i/f add signal of I2C and EINT20
4. Power Supply Voltage 5V
5. Audio input socket type
6. Dimension 100 x 100 mm

QQ2440:
1. Ethernet Chip CS8900
2. User Button Number 4
3. CMOS Camera i/f no signal of I2C and EINT20
4. Power Supply Voltage 12V
5. Audio input socket type
6. Dimension 120 x 100 mm