HP ProBook 4520s laptop (purchased in 2011): Intel i5 processor, 4GB RAM, 15.6" screen, has numeric keypad. Hard drive is Crucial BX100 250 GB (nominal) SSD (purchased in 2015). Runs the current version of Windows 10 Professional with no problems and is fine for word processing, email, etc. Complete with power supply, small Logitech mouse and carry case. Has had clean reinstall of Windows.
One caveat: the screen recently cut out, but seems to be fine now (see picture, taken today).
HP ProBook 4520s laptop (Stargate NE40)
This offer has been gifted to someone and is no longer available.