ASUS P8H61-M LX PLUS &lt;REV 3.0&gt; - LGA 1155 - H61 - COM port - LPT port 2 x DIMM, Max 16GB, Dual-channel DDR3 1333/1066MHz support 100% Solid Capacitor - High-quality conductive polymer capacitors for durability, improved lifespan and enhanced thermal capacity UEFI (Unified Extensible Firmware Interface) BIOS Gb LAN featuring the latest Realtek Chipset 1 x COM port1 x LPT port EPU - System Level Energy Saving & Real-time Power Management for Superb Platform Power Efficiency ASUS Anti-Surge Protection - Safeguard your device by providing voltage protection to all major onboard components Low EMI - ASUS innovative design for 50% less radiation