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  • ASUS U31SG-AS52 13.3-Inch Laptop (Black)
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ASUS U31SG-AS52 13.3-Inch Laptop (Black)

by Asus

Currently unavailable.
We don't know when or if this item will be back in stock.
  • Intel Core_i5_2450M Processor 2.5GHz
  • 750GB 5400rpm Hard Drive
  • 13.3-Inch Screen, Nvidia GT 610M 1G
  • Windows 7 Home Premium (64-bit)
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Product Information

Expand all Collapse all Technical Details
Screen Size13.3 inches
Max Screen Resolution1366x768 pixels
Processor2.5 GHz Core i5-2450M
Hard Drive750 GB SATA
Graphics CoprocessorNvidia GT 610M 1G
Graphics Card Ram Size1000 MB
Wireless Type802.11bgn
Number of USB 2.0 Ports 3
Brand NameAsus
Item model numberU31SG-AS52
Operating SystemWindows 7 Home Premium (64-bit)
Item Weight4 pounds
Item Dimensions L x W x H12.90 x 1 x 9.20 inches
Color Black
Processor BrandIntel
Computer Memory TypeDIMM
Hard Drive Rotational Speed5400 RPM
Optical Drive TypeN/A
Audio-out Ports (#)1
Batteries:1 Lithium ion batteries required. (included)
Additional Information
Best Sellers Rank #11,698 in Computers & Accessories (See top 100)
Shipping Weight6.6 pounds
ShippingCurrently, item can be shipped only within the U.S.
Date First AvailableApril 17, 2012
Warranty & Support Return Policy: You may return any new computer purchased from that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellableRead more condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

Product Description

From the Manufacturer



Optimized Performance for up to 9 Hours of Mobility

The ultra-slim 13.3-inch U31SG-AS52 has incredible features that take you far beyond standard entertainment notebooks. It's powered by the Intel Core i5-2450 processor that's smarter and faster with Intel Hyper-Threading Technology for enhanced multitasking. Plus, the U31SG-AS52 features NVIDIA GeForce graphics with NVIDIA Optimus Technology that seamlessly switches between powerful NVIDIA graphics and Intel embedded graphics to give you smart visual performance and battery-savings when you need it. With Full HD playback capability and HDMI connectivity, you can easily connect to any HDMI-enabled HDTV and enjoy a complete cinematic experience.

Learn More

Achieve More, Longer

The U31SG-AS52 offers up to 9 hours of battery life to take you further than most notebooks can with efficient multitasking performance by intelligently blending together innovative, battery-saving features. With the ASUS Power4Gear utility, you can optimize power management with a push of a button and select the energy profile of your choice.

Plus, with 6 GB DDR3 system memory, it provides not only faster performance but also promotes energy efficiency. The LED-backlit screen also improves energy savings compared to that of notebooks without it. The U31SG-AS52 is powered by an ultra-high-density 8-cell battery that is one of the largest in comparable 13.3-inch models.

Latest in Mobile Graphics Technology

NVIDIA GeForce Graphics

The U31SG-AS52 features NVIDIA GeForce GT 610M with 1GB DDR3 VRAM for HD performance and amazing multimedia capabilities. With DirectX 10.1 compatibility, the U31SG-AS52 lets you play light to casual games with textured detail, better dynamics, and greater special effects than traditional embedded graphics.

NVIDIA Optimus Technology

Like a hybrid car seamlessly switches from gas to electric, the U31SG-AS52 features NVIDIA Optimus Technology that automatically optimizes system performance by switching between powerful NVIDIA graphics and energy-efficient Intel graphics to let you do what you want without interruptions.

Efficient Multitasking

The U31SG-AS52 is built with the new smarter and faster Intel Core i5 processor which provides better multitasking performance. Plus, it also features NVIDIA Geforce graphics that efficiently powers HD content while maintaining optimal battery savings.

The Complete Multimedia Package

Bring the magic of the theatres where you want with the U31SG-AS52. Featuring a 13.3-inch HD display and Altec Lansing speakers, you get premium visual and audio playback to enjoy your favorite movies online in a size that's big on entertainment and small for ultimate portability.

The U31SG-AS52 also doubles as a portable home media center with HDMI connectivity, so you can sync to any compatible HDTV for a Full 1080p HD experience.

Enhanced Connectivity

The U31SG-AS52 lets you surf the Web in wave-shredding speed with wireless N connectivity (802.11 b/g/n @ 2.4GHz). Wireless-N has a longer range and faster transfer rates that keeps you connected further and saves you time when downloading content or exploring Web pages. The U31SG-AS52 also features a LAN port to directly connect to a router for an even faster and more secure connection.

Relax, ASUS Has You Covered

US mobile PCs finish at or near the top of the reliability rankings in survey after survey.

This notebook is also backed by the industry's most comprehensive warranty.

1 Year Accidental Damage Protection (ADP)

Whether your notebook is damaged by accidental spills, drops, electrical surges, or fire, ASUS will fix it or replace it for you during the first year after purchase.

Key Features

  • Ultra slim 0.39 inches notebook with powerful Intel standard voltage processor
  • Up to 9 hours of battery life of unplugged freedom
  • Intel Core i5-2450M (2.5GHz) processor gives you smarter multitasking performance
  • 13.3-inch HD LED-backlit display for crisp visuals without compromising battery
  • NVIDIA GeForce GT 610M Graphics delivers great HD entertainment performance
  • NVIDIA Optimus Technology instantly switches between power NVIDIA and energy-efficient Intel graphics for the task at hand


  • Operating System: Windows 7 Home Premium (64-bit)
  • Display: 13.3-inch LED-backlit HD display (1366 x 768)
  • Processor: Intel Core i5-2450M (2.5GHz)
  • Graphics: NVIDIA GeForce GT 610M 1G
  • Wireless Data Network: 802.11 b/g/n (@ 2.4GHz), Intel WiDi support
  • LAN: 10/100/1000 Mbps Ethernet
  • Memory: 6GB DDR3 DDR3 1066 MHz SDRAM, 2 x SODIMM socket for expansion up to 8GB SDRAM
  • Storage: 750GB 5400RPM
  • Camera: 0.3 Megapixel
  • Speakers: Altec Lansing speakers with SRS premium sound
  • Microphone: Digital Array Microphone
  • Card Reader: 1 x 5-in-1 card reader (SD/MMC/MMC+/MS/XD)
  • Input/ Output:
    • 1 x HDMI output
    • 1 x Headphone-out jack (S/PDIF support)
    • 1 x Microphone-in jack
    • 1 x VGA port/ Mini D-sub 15-pin for external monitor
    • 1 x RJ45 LAN Jack for LAN insert
    • 2 x USB 2.0 ports
    • 1 x USB 3.0
    • Bluetooth 3.0
  • Battery: 8-cell 5600mAh battery (up to 9 hours)
  • Dimensions: 12.7" x 9.1" x 0.75"–inches (W x D x H)
  • Weight: 3.7 lbs with 8-cell battery
  • Color: Black

What's in the Box

  • U31SG-AS52 Notebook
  • AC Adapter
  • 8-cell Battery Pack
  • Warranty Information Card

Product Description

13.3" HD (1366*768) / Intel Core i5-2450M (2.5GHz) / 6GB DDR3 / Nvidia GT 610M 1G / 750GB 5400RPM / Widnows 7 Home Premium (64bit) / 802.11BGN / 0.3M Pixel Camera / Bluetooth 3.0 / 8 Cell Battery / HDMI / 1YR Global/1YR Accidental Damage/30-Day Zero Bright Dot/2-way FREE shipping/24-7 tech support

Customer Questions & Answers

Customer Reviews

Overall I'd give it a 5/5 stars.
This U31sg-AS52 Asus laptop is solidly build and has a very pleasant keyboard.
D. Faissler
Enough complaining about things every manufacturer is doing.
Amazon Customer

Most Helpful Customer Reviews

18 of 18 people found the following review helpful By Amazon Customer on June 22, 2012
Verified Purchase
I was waiting for a new Trinity based notebook but discovered that very few would be released in the 13.3in form factor. This lead me to start looking for something else. After a failed attempt to purchase an open box Viao at the local box store I stumbled upon this little beast.
Windows treats the Dual Core i5 as a quad thanks to Hyper threading and the performance is not at all bad. I was very happy with the performance I encountered while setting it up and then later running a few games on it.
Why Asus would choose to put 6GB in it rather then 4GB or 8GB is one of those questions that will never be answered. This basically means that if you want to put 8GB in it, you will have to throw away, donate, or store the 2GB SODIMM in one of the slots. That said, it does run in dual channel mode and has more than enough memory for just about anything you would want to do.
The 1366x768 resolution is not bad, and at 13.3 and this price I really don't expect more. The screen is clear and sharp with solid viewing angles. With it positioned a bit high or low it did not wash out as some other less expensive Asus models are known to do.
The dedicated graphics card built into this machine is a fairly entry level Nvidea card, the 1GB of dedicated graphics memory is adequate as most serious gamers are not going to be interested. On that note I have to say that I was impressed. Skyrim is a fairly graphics heavy game and it autodetect at Med-High settings. These proved to be right on the money. With FXAA on the game launched and played lag free through the entire introduction.
My four real complaints are, and do take these with a grain of salt, every single manufacturer out there is doing the exact same thing:
- 1.
Read more ›
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22 of 25 people found the following review helpful By Hieu on May 24, 2012
Verified Purchase
This is my seventh laptop I've owned in the past decade and it is by far the best all around. I did thorough research and even waited half a year before finally making the purchase. So far I've only had about a week's worth of experience using it but it doesn't take very long to recognize and appreciate quality. ASUS and MSI are both powerhouses when it comes to producing high end and quality computer products. Popular computer brands will have their parts made by either ASUS or MSI for their high end lines of computers. In terms of practicality and functionality, this little machine meets all of my needs. I picked this one in particular for it's versatility for business use. With over 7+ hours of moderate to high system resources use, it has meet and exceeded my expectations on battery life. If used moderately to low, I know I can definitely squeeze out 10+ hours with ease. The Optimus technology was a big selling point for me as well the slim form factor and the dedicated graphics card. Equipped with a Core i5 processor, there is no short of processing power when I need it. 750GB of HD space is more than sufficient for my computing needs. In addition, ASUS did not skimp out when it came to RAM either. Bluetooth, USB 3.0, and the multi-card reader slot is just icing on the cake. Some people may be particular about the click button for the mouse pad but I found it to be a familiar sound I've experienced with the past laptops. No overheating issues that I've noticed. I really dig the aluminum cover for the lid as well, giving it a sophisticated and modern look/feel.Read more ›
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6 of 6 people found the following review helpful By Mike R on July 17, 2012
Verified Purchase
I originally started reviewing all the ultrabooks and found that the Toshiba R835-P94 13.3-Inch Laptop because it had all the features I was looking for including a built in CD player. Once I received the unit I found that it had an issue with the audio - it would glitch and change pitch even playing the sample songs that came with the system.
I had it exchanged through Amazon and the replacement did exactly the same thing. I contacted Toshiba support and they had me do the typical things like replace the audio drivers and settings - nothing helped. This system has and issue and Toshiba needs to look into it. I returned that system.

I reviewed the customer comments on the Asus and found very high praise and although the system did not have a built in CD, it was close in price.

Once I received the Asus, you can see it's quality is much better then the Toshiba and the keyboard is much nicer. The Toshiba keys are flat and very slippery and causes many mistypes.

I also say the Asus seemed much faster and once you turn off a lot of the freebee apps that come with it, it's a very nice system. I did purchase an external CD/DVD for it and at least now I have that option if I want.

Last thing is my satisfaction with Amazon itself as if not for purchasing directly from them, it might have been a hassle to return the Toshiba systems for full credit. When purchasing high dollar items, I try to stick with ones sold directly from Amazon because of their fast customer service and also the 12 month interest free was a bonus.
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