A combination of exclusive hardware & software design including "ground-isolation circuit design", "an independent audio power", & "a built=on-board amplifier", with all these hardware features gives you the best audio quality & performance. As for software, we offer you a free bundle utility " Multi-Channel Calibration" which normally youll find in high level sound systems; this feature means that you can auto detect your location; with a user friendly interface, you can easily adjust the volume of every speakers to make a well balanced surround sound. & of course, the built-on-board amplifier always gives you a super powerful sound comparing to other motherboards. Hi-Fi Ground BIOSTAR Hi-Fi Ground (Golden Line ) is noise-blocking multi-layer PCB design to isolates analog audio signals from digital sources. Unique PCB layout is ideal for exceptional clarity & high fidelity sound. Hi-Fi Sound BIOSTAR Hi-Fi series motherboards have a sampling rate of 192k Hz/24-bit which delivers a high quality audio through an analog connection to your home theater system, multi-channel speakers & high-end headphone. You can enjoy real Blu-ray grade high-definition sound that you’ve never experienced before. Smart Ear Smart EAR is a windows-based audio utility which means that you can easily adjust system volume. With its user-friendly GUI, you can also increase or decrease impedance setting (Low/ High Gain) to optimize your headphone performance. You can easily enjoy high-quality & awesome sound. DX12 Direct X 12 introduces the next version of Direct 3D, the graphics API at the heart of Direct X. Direct 3D is one of the most critical pieces of a game or game engine, & weve redesigned it to be faster & more efficient than ever before. Direct 3D 12 enables richer scenes, more objects, & full utilization of modern GPU hardware. Display Port Display Port is a digital display interface developed by the Video Electronics Standards Association (VESA). The interface is primarily used to connect a video source to a display device such as a computer monitor, though it can also be used to carry audio. DVI DVI is better than VGA for LCD displays since it is digital while VGA is analog. For LCD displays, the picture is digitized pixel per pixel. Through DVI, the panel gets data for each pixel, so the picture generated in the Graphics device matches the pixels on the panel itself. PCI-E 4.0 PCI-E 4.0 is the next evolution of the ubiquitous & general-purpose PCI Express I/O standard. At 16GT/s bit rate, the interconnect performance bandwidth is doubled over PCI-E 3.0, while preserving compatibility with software & mechanical interfaces. Moistureproof PCB The popularity of PC usage & working environment is getting deteriorating & moist (rural, coastal, etc.). The PCB will be oxidizing easily by damp or absorbed moisture, & ionic migration or CAF (Conductive Anodic Filament) will be generated. Moisture-proof PCB meets high density & high reliability requirements for moisture proof.