You're welcome, same to you..But just to help you understand better, industry standard specifications limit PCIe x16 slot power draw to 75-Watts..The GTX 750 Ti is a 60-Watt card and gets all of it's power through the PCIe x16 slot..The more powerfull versions such as the 750 Ti with ACX Cooling and the FTW with ACX Cooling are 80-85-Watt cards that require supplemental power beyond the 75-Watt PCIe x16 slot limit..The power draw of the card, (any card, any manufacturer) determines what type/how many/if any supplemental power connectors (aka PEG connectors) are needed and the card manufacturer can arrange them however they want..For example, card manufacturer ABC could opt to use two 6-pin supplemental power connectors (75W + 75W) while card manufacturer XYZ could opt to use one 8-pin supplemental power connector (150W) instead, for the same power draw card, to achieve the same end result..PCI-SIG writes the standards for all things PCI/PCIe that manufacturers should adhere to..
Here is a little more info on that..Intel writes the standards and design guides for all things Power Supply Unit that manufacturers should adhere to.
A 6-pin supplemental power connector can supply 75-Watts.
An 8-pin supplemental power connector can supply 150-Watts.
A 6-pin + 6-pin supplemental power connector arrangement can supply 150-Watts.
A 6-pin + 8-pin supplemental power connector arrangement can supply 225-Watts.
An 8-pin + 8-pin supplemental power connector arrangement can supply 300-Watts.
An 8-pin + 8-pin + 6-pin supplemental power connector arrangement can supply 375-Watts.
All of this in addition to the 75-Watts the PCIe slot can provide.