You are purchasing a USB flash drive. All orders include the recommended power cable with complete install instructions. The install involves plugging in the USB, and powering the system off and on, no computer necessary. It is very simple. If you need the system, I have that available with the USB and OTG Power cable too. Runs a user-friendly interface which is easy to navigate even for beginners. I cannot stress how important having the pass through power cable is. Not only will it free up your second front USB port, but it will also help avoid power issues which can corrupt your USB and cause crashes. The front USB ports were only intended to run the included USB controllers, not a USB drive. Instructions are included as a text file on the USB. This 64GB or 128GB usb flash drive is fully loaded. Includes emulators and hundreds of games for the following systems: Atari Lynx Atari 2600 Atari 7800 DC GameGear Gameboy Gamebay Advance Gameboy Color MAME Megadrive TurboGrafx 16 TurboGrafx-CD PC Engine SuperGrafx NES NGPC PS1 PSP Sega – Mega-CD – Sega CD Sega Master System Sega32x SG1000 SNES SNK – Neo Geo SK Neo-Geo Pocket Virtualboy The 128 GB includes additional PS1 Games. A total of 6500+ games are included. Disclaimer: I have to include this per Ebay policy. The included software can be found on the internet for free. You are not paying for any ROMS or software. You are only paying for my time, the 64 GB/128 GB flash drive and the OTG cable. The DMCA allows each person to own one digital copy of each game they have purchased in its physical form. I own each of the games on this device. By purchasing this device & keeping the included ROMS, you are in effect stating that you own a physical copy of each included game. You must delete any ROMs you do not own upon receipt of the item. Thank you so much for your interest!