Although Gigabyte GA-Z77-D3H is an entry-level product, we had a highly positive experience with it. Its functionality is largely determined by its Intel Z77 Express chipset, and the only chipset feature it doesn’t really use is its ability to share CPU-integrated PCIe lanes between two graphics slots. Instead it has an additional onboard USB 3.0 controller which is responsible for another pair of USB 3.0 ports on the mainboard back panel. The mainboard’s advantages are numerous and include such important features as a user-friendly PCB design, an mSATA connector, ability to adjust the rotation speed of 3-pin CPU fans, efficient layout of the mainboard back panel, all advantages of the DualBIOS and Ultra Durable 4 Classic technologies, excellent overclocking and system fine-tuning options. As for downsides, we have already mentioned some of them. Like other Gigabyte mainboards, GA-Z77-D3H doesn’t display startup information. Besides, only one system fan connector out of three can lower the fan rotation speed. On top of that, its power consumption is noticeably higher than that of the competitors.
Of course, you may encounter some other downsides depending on your particular preferences. Someone may not like the vertically oriented SATA connectors. Others will ask for more than two PCI slots. However, no mainboard can meet requirements of all users, that's why there are so many different models offered by each manufacturer. You can always find the most suitable model from a lot of similar ones.
However, we do not want to underestimate the value of numerous great features Gigabyte GA-Z77-D3H has to offer, the most significant one being its problem-free behavior. This mainboard just works as expected. You don’t have to do anything to make your CPU work at its true nominal frequency. You don’t have to check out if the power-saving technologies are enabled or not. There are no BIOS update issues. It offers a lot of setup options and reacts adequately to any changes in them. Any configuration changes are quick and easy and the mainboard responds adequately to anything you do. There are mainboards with lots of additional controllers and extensive functionality and there are mainboards which are inexpensive and simple, but among both categories it is not so often that we find such a problem-free product as Gigabyte GA-Z77-D3H.