Alienware has announced its first commercially available Steam Machine and it is called Alienware Alpha, which will be released in November with a retail price of $550.

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It will just use a normal Xbox 360 gamepad and also the Alpha won't ship with a SteamOS either, but will just basically use a mid-spec Windows 8.1 PC that boots up directly to Steam's Big Picture Mode. If you want a Steam Machine that runs on a Valve SteamOS and the Steam Controller, you'll have to wait until 2015 for it.

The Alienware Alpha is basically more like a PC in terms of specs and configuration options, which will revolve around an Intel Core i3, 4GB RAM, and 500gb of hard drive space. Most of its games will run on its custom integrated Nvidia Maxwell GTX GPU.

There will also be configurable options to choose from such as an Intel i5 and i7 CPU's, up to 2TB of Storage, and up to 8GB of RAM that also has two available slots that will support on up to 16GB of RAM. It will feature a front USB 2.0 port and a couple of USB 3.0 ports on the back, and will be compatible with any of the Windows peripherals like Bluetooth headsets or wireless keyboards. It will also work with a wired Xbox One controller with a Windows driver.

The Alienware Alpha has a custom-made user interface called the Alpha UI that will allow you to skip up to the Windows 8 desktop.

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The basic configuration of the Alienware Alpha Core i3/4GB RAM/500GB with a wireless Xbox 360 controller is priced at around $550. It is now available for pre-order, and will start shipping by November.