This is not my video give all credit to this guy:

Youtube.com/Keil423

Slim console DemoN Installation

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Again these arent my videos give credit to Keil423

Feel free to ask me any questions

Xecuter DemoN is the most advanced Xbox 360 NAND device ever created. It's not just a dual nand......

Giving you the ability to have dual NAND's is nothing new to the scene thanks to Team Cygnos and their dual NAND tool for older generation Phat JTAG models. However since the advent of the Reset Glitch Hack (RGH) scene, there has been a resurgence of homebrew activity on all the newer models of Xbox 360, and therefore there is not only a need for multiple NAND's, but also a variety of developer functions are now required so you can run your own custom kernels and linux apps on all the latest models including the new Xbox 360 S (or Slim as its known).

Picking up where Cygnos left off, Xecuter has taken the Dual NAND design and basically fixed every known bug and flaw that existed with the Cygnos, improved features, increased r/w speeds, redesigned the layout and install methods, added new developer functions and basically taken the dual NAND concept to the a whole new level.

Not only does the DemoN give the most stable dual NAND solution available, but it also has many dedicated development features that contribute to many different homebrew projects such as libxenon, dashlaunch, freestyledash, freeboot and many more. There are a massive 16 dedicated I/O's available for a multitude of features and add-ons and also an custom coded DLL library so that any developer can interface completely with the DemoN - you will see some really great things in the future

The built in NAND R/W hardware is a stand out feature. Completely bypassing the need for any external device such as the Xecuter NAND-X or any other SPI tool, the DemoN has a USB port which offers a completely pass-thru solution giving you direct access to the Demon & Onboard NAND's - and with the turbo mode, giving you NAND r/w speed that have never been seen before !

Xecuter hasn't forgotten JTAG fans either, There are thousands upon thousands of users out there who run a perfectly functioning JTAG machine - many of them using the Xecuter JTAG QSB Install Kits that have become so popular over the last couple of years. Not only does the DemoN support all of the latest RGH devices such as the Xecuter CoolRunner - but they have also designed the DemoN to make sure that it doesn't affect any current JTAG installs - which is perfect for those who have the QSB kits installed and working perfectly - fitting the Demon does not require that they have to remove their functioning JTAG feature. Xecuter thinks of the customer experience first and foremost !

As always with Team Xecuter you can trust that they make the absolute best quality devices paying attention to the tiniest details and making sure that the end user is completely confident in a premium product backed by their famous warranty,

This is copied from team xecuter forums not my work or words