(PC Hardware Question!) Northstar TAR 05 Rev 1.0 Multi-Card Reader Cable doesn't match a plug; help?

I'm reassembling an eMachines computer that I've upgraded hardware-wise and done some exterior modification to. The problem is that the internal Multi-Card reader (see title) has a cable that doesn't match the motherboard. It's not any USB that I'm familiar with. What am I to do? Are there converter attachments? Should I plug it into a USB or the Front panel? I really need help on this, cause my research isn't producing any results.

(Update: Just learned the cable I have is an Header Cable 4pins plus an empty, question remains though.)

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