Diverse lineup of products dominates Asus’ CES keynote.

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Asus kicked off its keynote at CES with a series of new product announcements by its energetic and enthusiastic chairman Jonney Shih.

Shih ran through the new flagship products Asus would be launching in 2014: the dual-OS Transformer Book Duet, a new lineup of Zenfones, and a Republic of Gamers branded monitor that supports Nvidia’s G-Sync technology.

Transformer Book Duet

Shih began Asus’ keynote by showing off the Transformer Book Duet TD300, a convertible laptop-tablet that Shih calls the first “4-in-1” device. The Transformer Book Duet, Shih says, is a Windows laptop, Android laptop, Windows tablet and Android tablet. Shih also said that there is no dominant OS on the device, but rather the two operating systems work together in harmony.

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The 13.3-inch device is powered by a quad-core Intel i7 or i3 processor and has 4 GB or RAM. In tablet mode it has 128 GB of internal storage, but in laptop mode it that goes up to 1TB thanks to an internal hard drive. While in laptop mode it offers a variety of ports including HDMI, USB 3.0, and two USB 2.0 slots.

Shih said that the users will be able to switch between Windows 8.1 and Android (4.1) in less than four seconds.

The Transformer Book Duet will be available in Europe and Asia in late Q1 and North America in late Q2. Pricing hasn’t yet been confirmed for the i7 editors, but the i3 version will start at $599 with the 1080p edition to be priced at $699.

A ZenFone at every price point

Shih continued the keynote to announce a new series of ZenFones: the ZenFone 4, 5 and 6.

All of the devices in the ZenFone line are powered by Intel’s Atom processor.

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The ZenFone 4

The low-end ZenFone 4 has a four-inch screen with a 800×480 resolution, a five megapixel camera, and a  Atom Z2520 dual core chip at 1.2Ghz. It will retail for $99.

Moving up the line is the ZenFone 5, with a 2.0Ghz Atom Z2580, a five-inch screen with a resolution of 1280×720, and an eight megapixel camera. It will retail for $149.

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The ZenFone 5

The flagship of the line, the ZenFone 6, has a six-inch screen that supports input from a stylus and has a 13 megapixel camera. It has a price point of $199.

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Republic of Gamers goes G-Sync

On Sunday night, at Nvidia’s press conference, its CEO Jen Hsun Huang highlighted the company’s G-Sync technology as one of the important products it was launching in 2014. Now, Nvidia has a partner to manufacture monitors with this technology embedded.

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The Republic of Gamers PG278Q features a 2560×1440 resolution, with a 120Hz resolution  and G-Sync technology.

Asus says the monitor will be available in the second quarter of the year.