Features:
No need to replace the power supply, just connect to the old 3*8Pin modular cable to convert to 12+4pin cable, 5.0 PCIE extension cable designed according to the new generation standard.
Sleeved cable mod 12pin adapter is design for RTX 3090Ti graphics card. The usual 3090ti graphics card only needs 450W, 12Pin to 3*8Pin psu extension cable supports 600W stable output, better protect your precious 3090ti vedio card and higher RTX40 series.
Cable manufactured with 16AWG wires and come in a high-density flexible PET meterial sleeve, will be stiff than the cotton weaving, but guaranteed wear and heat resistance, it also be bendable and keep the shape, save your chassis spase.

Specifications:
Color: Black
Wire specification: 16AWG supporting 600W
Line length: 300mm
DC: 12V 50A
AC: 220V
Connect A: 12+4Pin(Male)
Connect B: 3*8Pin(Famale)
Supported: RTX 3090Ti & 4080 4090

Package include:
1 x Power Adapte Cable

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