Here we have the innovative Supertech capacitors, offering Slit Foil technology in the form of the 2Ts and the highly prized T-network 4TTN's. Both types are amazing performers. Supertech Slit Foil 2T Electrolytic CapacitorsAn innovatively designed capacitor that gives you an exceptional performance. Give them a go in your PSU. Supertech 4TTN T Network Electrolytic CapacitorsFour terminal capacitors that reduce unwanted effects that normal capacitors have. Outstanding performers.