GA-H81.AMP-UP (rev. 1.0) H81AMPUP.F4 8MB Intel® H81 Chipset Supports 4th Generation Intel® Core™ processors GIGABYTE Ultra Durable™ 4 Plus Technology GIGABYTE Hybrid digital power engine GIGABYTE UEFI DualBIOS™ GIGABYTE AMP-UP Audio technology Exclusive Gain Boost Exclusive Upgradable OP-AMP Nichicon High End Audio Capacitors Noise-less USB DAC-UP port Audio Noise Guard with LED path lighting LAN with high ESD Protection Realtek ALC898 with High Quality 110dB SNR HD audio