The Gigabyte K8NS Ultra -939 512MB DDR400 Motherboard is a high-performance ATX motherboard designed for AMD processors. With four memory slots supporting DDR400 memory, this motherboard offers ample capacity for multitasking and demanding computing tasks. It features a Socket 939 socket type, PCI expansion slots, USB 2.0 input/output ports, and on-board audio for enhanced functionality. The model, Gigabyte K8NS Ultra-939, is known for its reliability and compatibility with a range of AMD CPUs, making it a solid choice for building a powerful and efficient computer system.