For just £55 the Tuniq Potency 550W is a good deal to be had. Although it doesn’t boast the efficiency and stability of the more expensive PSU’s we tested, its results are perfectly fine for a stable and efficient power supply.
My only real gripes are the fact it not being modular and it having only two SATA connections included. In many systems nowadays, Molex connectors are not used. Therefore, two of the Molex connectors should have been replaced for the more popular SATA counterparts.
Bottom Line: A perfectly recommended power supply for a user on a budget.