gigahertz gigahertz gigahertz GHz GHz GHz GHz GHz GHz gigahertz Ghz gigahertz GHz GHz Ghz gigahertz GHz Ghz gigahertz GHz gigahertz gigahertz GHz gigahertz GHz GHz GHz What is it? GHz GHz GHz GHz GHz gigahertz GHz GHz GHz gigahertz GHz gigahertz gigahertz GHz GHz gigahertz GHz GHz gigahertz GHz GHz GHz GHz GHz gigahertz gigahertz GHz Ghz GHz GHz GHz gigahertz GHz