Those 7mm-thick hard drives you've seen in some Ultrabooks are already looking a tad on the chunky side. Western Digital has started producing sample versions of a hybrid hard drive (you're not yet looking at it here) that measures just 5mm (0.2in) tall, even as it crams in both flash and a 500GB main disk. If you think the slimmer drive is just the ticket for a best-of-all-worlds laptop that's both fast and capacious, you're not alone: Acer and ASUS have mentioned their collaboration in the same breath, which may be a strong clue as to where future Aspires and Zenbooks are going. The remaining question is when they arrive. Sampling isn't the same as mass production, which could leave us with months to go before the 5mm drive lands in future extra-skinny PCs.

Filed under: Laptops, Storage

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We often assume that Ultrabooks scarcely have any room to budge on the inside, and that's usually true. An iFixit teardown of ASUS' Zenbook Prime has proven that there's always an exception to the rule. Looking at a UX32VD with the same base layout as the UX31 we reviewed, the repair outlet finds that the upgraded Zenbook has both embedded and removable RAM: provided owners are still willing to perform some surgery, they can upgrade past the 4GB of included memory on their own terms. The repair team is a bit dismayed that there's a 5,400RPM hard drive spinning near the mini SSD -- how very 2011 -- but notes that it's equally swappable by those who want something faster. Whatever you think of the fully pieced-together ASUS PC, it's apparent there's a reward for those willing to take it apart.

Filed under: Laptops

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ASUS made a grand entrance into the Ultrabook race with the Zenbook Prime UX31E, which brought a sleek design and lovely, high-res screen. That machine was one of our favorites in what was still a budding category, though we took issue with the shallow keyboard and uncomfortable touchpad. The company recently started shipping its new Zenbook Prime series, including the 11-inch UX21A we checked out a few months ago. But there's also a follow-up to the 13-inch UX31E on the market: the ASUS Zenbook Prime UX31A. This laptop offers a retooled keyboard, Ivy Bridge chips and a 1,920 x 1,080 IPS display, starting at $1,069. So how does the new 13-inch Zenbook stack up in a crowded field of high-end ultraportables? Join us past the break for the full report.

Gallery: ASUS Zenbook Prime UX31A review

Filed under: Laptops

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True to its pledge, ASUS has hauled the backlit keys and 1920 x 1080 IPS displays of the Zenbook Prime UX31A stateside, where it just made the Amazon scene in Core i7 and i5 Ivy Bridge flavors. The 13.3-inch Ultrabooks also have 4GB RAM, Intel HD 4000 Graphics and 128GB or 256GB solid state drives, depending on the model, and weigh in at a stark 2.86 pounds. The priciest Core i7 configuration with a 256GB SSD will run $1,599, and the lower-end Core i5, 128GB SSD version is $1,149. Some models are out of stock already, so if want to shell out, check the source for the product page.

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Remember that ASUS Zenbook Prime Ultrabook we previewed last week? Yeah, it's outdated already, and you have none other than ASUS to thank. In addition to all the Ultrabooks and tablets the company announced later this week, it's also showing off a touch-enabled version of the 11-inch UX21A we tested out. What can we say? The form factor makes sense, given that Windows 8 is on the way and Microsoft is the star of this year's Computex. Other than that touchscreen, though, you won't notice any differences in the hardware: it's the same industrial design and backlit keyboard that you know and covet. And while the show floor is littered with touchscreen laptops, we will say that it's an especially welcome addition here, since the Zenbook Primes are already endowed with some of the best displays on the market: IPS quality with 1080p resolution. Touch just makes it better -- so long as you can live with the fingerprints. No word on when (or if!) this will be available, or whether we'll see a 13-inch version. Considering this was built with Windows 8 in mind, though, we'd wager it'll be a few months yet before we get clarification on all that.

Update: An ASUS rep confirmed these touchscreen Zenbook Primes will be coming to the US, and there will be a 13-inch option too.

Gallery: ASUS Zenbook Prime UX21A with a touchscreen (hands-on)

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First the rumor mill revealed ASUS had plans to refresh Ultrabooks with Ivy Bridge and 1080p IPS displays. Then the company confirmed the news itself when it brought some new Zenbook Prime laptops out for a demo and promised they'd go on sale in ASUS' native Taiwan. Now we've got some splendid news for our readers here in the US: those fresh ultraportables are making their way stateside too... eventually. ASUS just confirmed it's bringing four models to the states: the 11-inch UX21A, the 13-inch UX31A / UX32A and the UX32VD. What's the difference between the UX31A and the UX32A, you ask? It all comes down to storage: the UX32A uses hybrid hard drives, while the UX31A packs an SSD. Meanwhile, the UX32VD is nearly identical to the UX31A except that it packs an NVIDIA GT 620M GPU.

As rumored, the lineup includes Core i5 and i7 Ivy Bridge processors, with 1920 x 1080 IPS displays offered even on the 11-incher. (If you don't need that kind of pixel density, 1366 x 768 displays will be available as well.) Another thing they all have in common: ASUS has tweaked the touchpad and re-tooled the keyboard, making the pitch 12 percent deeper. Also, the keys are now backlit, for what that's worth.

Tentatively, ASUS is saying the 13-inch variations will start at $999 with Ivy Bridge (that lone $799 13-inch model comes with a Sandy Bridge CPU). Still no word on pricing for the smaller UX21A, though we know it will be offered in two flavors: one with Core i5 and a 128GB SSD, and one with Core i7 and an optional 256GB drive. Of course, ASUS is careful to warn that these prices are subject to change, though we're presuming they're at least in the same ballpark as what you'll ultimately pay. Additionally, ASUS isn't saying when, exactly, these models will be available, but it's obvious that Intel needs to formally unveil its remaining Ivy Bridge CPUs before these laptops can see the light of day. We'll hit you back with more details as we receive them, but in the meantime head over to our preview of the UX21A for hands-on photos, benchmark scores and detailed impressions.

Gallery: ASUS Zenbook Prime UX21A

Gallery: ASUS Zenbook UX31A

Gallery: ASUS Zenbook UX32A

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