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Black 90-degree 4x8Pin to 16Pin GPU power adapter with right-angle 12VHPWR connector

SMUGDESK

SMUGDESK 4x8Pin to 16Pin 90 Degree Elbow GPU Power Adapter Cable

SKU CH-V78T-3AKMM

A 90-degree elbow adapter converts four 8-pin PCIe connectors into one 12+4-pin 12VHPWR plug for RTX 4090, 4080 and 3090 Ti cards, easing cable strain and reducing voltage drop under load

  • 90-degree elbow relieves cable strain and protects the 12VHPWR connector
  • Four 8-pin PCIe inputs convert to one 16-pin 12VHPWR output for PCIe 5.0 cards
  • High-purity copper conductors minimise voltage drop under heavy gaming and rendering loads
  • Precision-moulded locking connectors ensure secure contact and tidy routing in compact chassis
  • Compatible with RTX 4090, RTX 4080 and RTX 3090Ti graphics cards

90-degree 12VHPWR adapter for flagship GPUs

This right-angle power cable converts four PCIe 8-pin connectors into a single 16-pin 12VHPWR plug. It is built for RTX 4090, RTX 4080 and RTX 3090Ti graphics cards that require the PCIe 5.0 power interface. High-purity copper conductors keep voltage drop low during sustained gaming or rendering loads. The elbow design removes strain from the GPU socket.

Fits tight builds and protects the GPU socket

The 90-degree elbow routes the cable flush against the card, freeing space behind the GPU and improving airflow in compact ATX or MATX chassis. It needs a power supply with four available 8-pin PCIe outputs to deliver the required current. Precision-molded locking tabs prevent accidental disconnection under vibration or thermal cycling. Builders without four spare 8-pin cables cannot use this adapter.

No extra software or accessories included

The package contains only the adapter cable itself; there are no driver discs, RGB controllers or cable combs supplied. All performance gains come from the physical wiring and connector geometry. Users who need additional 8-pin cables or a modular PSU upgrade must source those separately.

Highlights

  • 90-degree elbow relieves cable strain and protects the 12VHPWR connector
  • Four 8-pin PCIe inputs convert to one 16-pin 12VHPWR output for PCIe 5.0 cards
  • High-purity copper conductors minimise voltage drop under heavy gaming and rendering loads
  • Precision-moulded locking connectors ensure secure contact and tidy routing in compact chassis
  • Compatible with RTX 4090, RTX 4080 and RTX 3090Ti graphics cards

Specifications

No published specifications for this item yet.

Questions about this item

What is the maximum current the 12VHPWR connector can handle continuously?

The adapter follows the PCIe 5.0 specification for the 12VHPWR 16Pin interface, using high-purity copper conductors to minimise voltage drop under full GPU load.

Does the 90-degree elbow get hot or restrict airflow after hours of gaming?

The right-angle design reduces cable tension and sharp bends, optimising internal airflow and helping maintain lower temperatures inside compact ATX and MATX chassis.

How many 8-pin PCIe cables must my power supply provide for this adapter?

The adapter requires four standard PCIe 8Pin power ports from the power supply to deliver power to the single 12VHPWR 16Pin connector.

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