GA-H81M-H (rev. 2.1) rev. 2.0rev. 1.1rev. 1.0 Intel® H81 Chipset H81MH21.F1 Supports 4th Generation Intel® Core™ processors GIGABYTE Ultra Durable™ Technology GIGABYTE UEFI BIOS GIGABYTE On/Off Charge™ for USB devices LAN with high ESD Protection HDMI, D-SUB port on rear panel Solid capacitors for CPU VRM design