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Black 90-degree 12VHPWR plug to two 8-pin connectors, 15 cm sleeved cable

JOYJOM 12VHPWR 90° 2x8Pin Type A Power Splitter Cord 15CM

SKU CH-900Q-JAK0F

A 90-degree Type A adapter converts two 8-pin PCIe connectors into a single 12VHPWR 12+4-pin plug for RTX 3090 Ti, 4070 Ti, 4080 and 4090 graphics cards

  • Rated speedPci
  • Connector detailsPci
  • Build detailsType A
  • Details2.3876 L x 10.2108 W x 26.0096 H centimeters, JOYJOM, 12VHPW
  • Key featuresType A, NVIDIA RTX 3090 Ti, NVIDIA RTX 4070 Ti, NVIDIA RTX 4
  • Right-angle 12VHPWR connector eases routing in tight cases
  • 16 AWG tinned copper conductors rated for 600 W delivery
  • PCIe 5.0 12+4-pin male to dual 8-pin Type A layout
  • 15 cm length keeps cable runs short and tidy
  • Supports RTX 3090 Ti, 4070 Ti, 4080 and 4090 graphics cards

What this cable does and who needs it

This JOYJOM adapter converts two 8-pin PCIe power connectors into a single 12VHPWR 12+4-pin plug for compatible RTX graphics cards. It is built for builders installing an RTX 3090 Ti, RTX 4070 Ti, RTX 4080 or RTX 4090 that require the Type A right-angle orientation. The 15 cm length keeps routing tidy inside compact cases.

Thermals, noise and power delivery

The 16 AWG tinned copper conductors are rated for up to 600 W continuous output under the PCIe 5.0 specification. Alloy copper terminals with tin plating maintain low contact resistance so the connection runs cool under load. No active cooling or moving parts are present, so the adapter adds zero acoustic noise to the system.

What it replaces and when to use it

This cord replaces a native 12VHPWR cable from the power supply when the PSU only offers 8-pin PCIe outputs. Both 8-pin ports must be populated for the adapter to function; a single 8-pin connection will not work. It is not suitable for graphics cards that require the Type B connector orientation or for power supplies lacking two spare 8-pin PCIe sockets.

How it compares

Measured against everything we stock in Y-Splitter Power Cables, at today’s prices. Recalculated every night.

Price $27.99
Pricier than about 90% of the 433 comparable items (median $13.99).

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Specifications

Product
Brand nameJOYJOM
Model name12VHPWR to 2 × 8 TypA
Performance
Rated speedPci
Ports & slots
Connector detailsPci
Size & build
Build detailsType A

Questions about this item

How do I install the 12VHPWR 90° Type A splitter and what step is often missed?

Connect both 8‑pin plugs from your power supply into the splitter, then insert the 90° 16‑pin connector into the GPU; the step people miss is plugging in only one 8‑pin — the adapter requires both to deliver 600W safely.

What maintenance or replacement will this 15 cm 16AWG splitter need later?

No scheduled maintenance is required; inspect the 16‑pin and both 8‑pin connectors periodically for dust or bent pins, and replace the cable if any terminal shows discoloration or the sleeving frays.

What limit appears first when the RTX 4090 draws sustained power through this PCIe 5.0 adapter?

The 600W rating of the 16AWG wires and alloy‑copper terminals is the first ceiling; continuous loads above that will heat the connectors before any other component reaches its limit.

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