Tested  Coleco ADAM  Computer.  Everything works except the Tape Drive.  Comes with:

-  New Mean  Well  Power Supply, 
-  Working Keyboard (with Cable), 
-  Composite video cable. 
-  Working controller   

Note that you can buy the Computer (Memory Module), Keyboard, and Power Supply separately on Ebay but they will cost over $100 each.   I have put together a complete system for you with a controller and a composite video cable, so it is Tested ready for use.

It has been tested and works in both the Computer and Colecovision modes.   The tape drive tries to load software but it never loaded.   To load software from other that a cartridge I suggest you get a FijiNet device.  The Coleco ADAM version of the FujiNet multi function peripheral. Provides floppy disk, DDP, and printer emulation as well as an IP connected network device.  Here is a link to a seller : https://www.tindie.com/products/tersteeg/fujinet-for-coleco-adam/ .   Search FijiNet to find other sellers.  

The power supply is new Mean Well power supply in a case with a power switch.  Much smaller and lighter than the original printer and is multiple voltage 120 or 240 volts

Has some scratches and wear,  See Pictures

The Red tint to the screen shot pictures is from my grow lights near the TV.   There is no red tint to the Computer's video.