Need a sub £500 (can be used) laptop with 16gb ram

Hi all,

Here are the requirements

a) must support 16gb ram
b) must have full HD 1920x1080 screen
c) at least i5
d) cost less than £500... Don't mind if its second hand /used
e) portable as possible so 14 in screen is absolute max, ideally want 12/13 inch


The purpose is to do browsing and run some virtual machines.

Some contenders:

Lenovo flex 2 14
dell e7240
Lenovo x240... Does this support 16ram?


Would appreciate any advice

Thanks in advance