One of the highlights of G31M-ES2C (as well as other Gigabyte motherboards, even value ones) is its high-quality CPU voltage regulator.  It has a three-phase design, ferrite chokes and solid aluminum capacitors. For a better understanding of the importance of such design, read our Everything You Need to Know About the Motherboard Voltage Regulator Circuit tutorial.

 
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Figure 7: CPU voltage regulator circuit.

The accessory set that comes with the board is the usual for low-cost motherboards: user manual, driver DVD, case back plate and floppy, ATA and SATA cables.

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Figure 8: Accessories.