This auction is for a Toshiba Tecra M11 Notebook powered by an Intel i5-4210u CPU and 4GB RAM [1 x 4GB DDR3 DiMM, one slot free] for spares or repair.

I fitted an SSD and installed Windows 10 Pro to test the hardware, which all worked fine so, other than needing a new lid [the screen is good] and replacing a missing key, it could be an easy repair or use the parts to repair or upgrade your Z40.