mid end PCIE graphic cardsall are 2 slots and 2 way GRAID max (GRAID is Parallax SLI/CF)PL and PM are 21cm long and have a 6pin extra power connectorwhile PH is 24cm long and have a 8pinPL is 1GB GDDR5 256bit for 120€PM is 1.3GB GDDR5 384bit for 160€PH is 1.7GB GDDR5 384bit for 210€