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Acer's Aspire S5 notebook opened up

S5's keyboard

Magnesium-aluminum alloy outside

All opened up

Side view

More of the side

S5 opened up

Closing the lid

LAS VEGAS--Acer debuted what it says is the "world's thinnest Ultrabook," the Aspire S5.

The 13.3-inch notebook, which was presented by the company just ahead of this year's annual Consumer Electronics Show, comes in at 2.98 pounds and measures 15mm at its thickest point

The hot new feature, besides the size, is a MagicFlip I/O port panel, technology that hides the notebook's various ports when not in use. On that list is USB 3.0, HDMI, and a Thunderbolt port.

Click through to see more shots of the notebook, which Acer says will be shipping in the second quarter of 2012.

Caption by / Photo by Acer

The inside of the computer is made up of a magnesium-aluminum alloy.

Caption by / Photo by Acer

The outside of the S5 is made out of a magnesium-aluminum alloy.

Caption by / Photo by Acer

A side view of the S5.

Caption by / Photo by Acer

Another side view of the S5.

Caption by / Photo by Acer

And yet another side view of the S5, this time facing right.

Caption by / Photo by Acer

More of the S5.

Caption by / Photo by Acer

The S5 with its lid nearly closed.

Caption by / Photo by Acer
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