FiOS Quantum, the newest Internet speed options from Verizon, are now available. The five speed tiers range from 15 to 300 megabits per second to 300 megabits per second, the fastest Internet speed in the nation. To put that in perspective: With a speed of 15 megabits per second, users can download a two-hour HD video in about 44 minutes. With 300 megabits per second, the video can be downloaded in two minutes. The 15 megabits service costs $69.99 per month, 50 megabits is $79.99, 75 megabits is $89.99 and 150 megabits is $99.99. The 300 megabits tier will be offered as a stand-alone package only, and will cost $209.99 per month on a month-to-month basis or $204.99 with a two-year contract. Existing FiOS customers can upgrade Internet speeds with no upgrade fee.