Gigabyte GA-Z77-D3H (rev. 1.2) vs Gigabyte GA-Z77X-D3H (rev. 1.2): What is the difference?
Amazon.com: Fit for GIGABYTE GA-Z77-D3H Rev 1.x USB3.0 SATA III Z77-D3H Computer Motherboard LGA 1155 DDR3 for Intel Z77 Desktop Mainboard Gaming Motherboard : Electronics