The Predator Helios 700 features a keyboard that slides out of the laptop.

Yes, you read that right.
Photo from theverge.com
Called the hyperdrift keyboard, you can slide it down to expose some fans and exhaust for better airflow and coooing.

Photo from theverge.com

It provides an extra boost in performance too by automatically detecting some OC potential. Watch this video for more information.

Spec wise, the Helios 700 will carry a 9th gen Intel processor, up to RTX2080, 144hz 3ms panel, 2TB + 512GB of Pcie SSD and the keyboard is per key backlit.

Details from Acer.com.