Can i use this for different power supply or just be quiet?

The adapter cable is compatible only with be quiet! power supplies, specifically those from the Dark Power 12 series, Straight Power 11 series, and Pure Power 11 FM series.

Questions & Answers: be quiet! 12VHPWR Adapter Cable for Dark Power Pro 12 / Dark Power 12 / Straight Power 11 / Pure Power 11 FM, for RTX 4090 and RTX 4080

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be quiet! 12VHPWR Adapter Cable for Dark Power Pro 12 / Dark Power 12 / Straight Power 11 / Pure Power 11 FM, for RTX 4090 and RTX 4080 | BC072

German Engineering - German Design - German Quality - German Performance
600W rated
Handles all graphics cards requiring an 12VHPWR connector
Requires 2 be quiet! 12-pin PCIe-Connectors on PSU side
Elegant look with attractively black sleeve
Usage as comfortable as a single cable
Replaces bulky standard adapter solution
3-years manufacturers warranty

$14^.90 –