This is a vintage Lenovo ThinkPad laptop from 2007, the R61i.  It comes with a Lenovo 90W power adapter and it's in great shape.  It is running Windows 7 Home Premium edition, SP1, I think, and has a nice big 15.4-inch display.

I've used it a bit to test it and remove user accounts from the previous owner and I've tried to get the existing Windows 7 install a bit closer to factory settings so the buyer can begin enjoying it.  It has a huge amount of ports and things compared to a modern laptop but I haven't tested most of them.  The battery still holds a significant charge -- you can see in the photos that it's using battery power.  The ThinkPad might be suitable for retro gaming, but my understanding is it's good because it's got a lot of interesting upgrade possibilities.

I think it's got a 80GB hard disk drive, but it might be a bit smaller, or maybe there's like a recovery partition I don't know about, and 1GB of RAM.  The CPU is Core2 Duo T5450 running at 1.66GHz.

The ThinkPad is in fantastic shape for such an old computer.