i need a wordpress portfolio plugin

see please this case study like follow
with click on box and go directly by another win tab to referrnce site
see please this site

Case studies

exact like this port folio

i have already a website and host
just want to add a portfolio plugin to add my works but it must be easy to use for me
my web site is codekit.at
under portfolio

just install and build a box and the rest do by myself text photo etc