This is a used laptop in very good cosmetic condition with very light signs of normal use (scrapes, scratches, etc). 

This laptop contains a 512GB M.2 SSD, a 1TB HDD, and a 16GB boot SSD. This last drive is not being used because Windows 10 requires a larger drive.

The optical drive is a DVD±RW / Blu Ray drive.

Some of the hotkeys do not work in Windows 10 because Samsung has not released updated drivers. 

  The following keys DO work: Screen brightness, volume, setup, video output, trackpad disable, airplane mode.

  The following keys DO NOT work: Keyboard LED brightness adjust, Fan (not sure what it does anyhow).

The Mode Dial works and will instantly change the computer between Gaming Mode, Balanced Mode, Library Mode, and Green Mode. Note: In Gaming Mode, the Options Set widget on the desktop will open the app, but it does not work properly in Windows 10. This application is supposed to allow changes such as LED color change, screen color, various in-game options, and a few other minor things.

Everything has been thoroughly tested and guaranteed to be fully functional (unless otherwise specified in this listing).

BatteryInfoView software reports a maximum remaining charge capacity of 67,950 mWh out of the originally-designed 89,090 mWh (76% health). However, no testing has been performed to assess actual useful battery life or discharge rate. Batteries are not guaranteed.

Includes the hard-to-find power adapter with the 4-hole tip. I do not know if this is OEM Samsung or not.