"The differential between this graphics card and other GTX 950s is the lack of any PCI express power connector. This distinguishing feature allows those with an aging computer system to still reap the benefits of a capable discreet graphics solution. The omission of a PCI express power connector and the significantly low power consumption of just 75W also means that system builders who are hitting the absolutely maximum values on their PSU can enjoy such graphics card too, because upgrading this type of product in such a scenario could mean a PSU upgrade is also mandatory - therefore GTX950-2G will alleviate a number of potential upgrade grievances."
David Mitchelson - Vortez.
ASUS GTX950-2G PCIE graphics card review by Vortez - Introduction & Conclusion.