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Rich, crystal-clear audio
ASUS SonicMaster is a combination of hardware, software and audio tuning, designed with the goal of giving you the very best audio experience. A professional-grade codec ensures precise audio encoding and decoding; while amplifiers, large speakers and resonance chambers perfectly suited to ASUS D509 ensure a powerful audio delivery and deep bass.
Exactly your type
The full-size keyboard on ASUS D509 is ergonomically designed and its sturdy, one-piece construction and 1.4mm key travel provide a comfortable typing experience.
One-touch for Windows Hello login
Accessing ASUS D509 has never been easier and more secure! With Windows Hello, there’s no need to type in your password every time!
ASUS D509 is equipped with the reversible USB-C 3.1 port, featuring an any-way-up design that makes connecting devices as easy as possible. There are USB 3.1 and USB 2.0 ports, HDMI output and a microSD card reader so you can easily connect all your current peripherals, displays and projectors with zero hassle.
Safe fast-charging and long-lasting battery
ASUS D509 features a 3x the lifespan of standard lithium-ion batteries. With ASUS fast-charge technology, a low battery can be charged to 60% in just 49 minutes.