This computer is is great working condition. It has been upgraded to 48Kb with a Intec Peripherals RAM installation. It has the little I.P. upgrade thin PCB soldered onto the back of the main PCB. It appears to be a professional installation. 

All the keys are working. It passes all Atari Diagnostic Cartridge 2.05 testes. See pictures. 

The system was disassembled. All the case, RF Shields, keyboard, parts, etc were washed and cleansed, All the socketed chips were reseated. All the card edges, OS, RAM, CPU, Main-board were polished to help avoid connectivity issues.  The same for the power-board pins.

The manuals are in great readable, shinny pages, condition. The PSU is showing near spec output, and was used for all testing. The 400 case looks very close to new condition. 

The 410 Program Recorder is also in good untested condition. It is the perfected Hong King version showing the orange indicator sticker. It is clean, but untested. The belts most likely need replacement. It does respond to 130XE request to start loading a program. 

The RF switch is untested, and looks close to new, but needs new sticky tape. 

The computer looks as it was upgraded to 48Kb with the Atari 400 48Kb Expansion Kit.  

The monitor and test cartridge are not included. 

If not mentioned above, The case looks very close to new/original colors.

This item is definitely not under any manufacturer warranty. Must be sold as is. No guaranty real or implied.