Engineers in Japan have set a new world record for fastest internet speed — and it’s so fast, you’d be able to download nearly 80,000 movies in just one second.

Need for speed: Internet speed is typically measured by how much data can be transmitted between two devices in one second.

The new record is 319 terabits per second (Tb/s). That’s double the previous world record for fastest internet speed and about 7.6 million times faster than the average home internet speed in the U.S. (42 megabits per second).

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Fiber-optic cables: Different types of internet connections transmit data over different types of hardware. The old dial-up connections, for example, relied on telephone wires, while the fastest kind of internet available today — fiber — uses fiber-optic cables.

These cables transmit data using pulses of light, which travel along thin optical fibers with glass or plastic cores.

Read more: Freethink