OwlTree 8-Pin to Dual 8-Pin Review: Specs, Pros and Cons

What stands out

• Converts one ATX 8-pin PSU connector to two PCIe 6+2-pin GPU connectors
• Total length of 75 centimeters (60cm + 15cm) for flexible routing
• Uses 18AWG tinned copper wire for stable current transfer
• Exclusively compatible with Corsair modular power supply series
• Black braided design matches standard PC builds

Who it fits

Key specs explained for this cable

Connector A: 1 x 8 Pin Male for PSU

This end plugs into your power supply unit. It connects to the ATX 8-pin socket, not the PCIe socket. You must ensure your PSU has this specific output. This adapter is not universal. It is designed for Corsair modular series like RM or HX. Using it on other brands may cause connection issues or damage.

Connector B: 2 x 8(6+2) Pin PCIe Male for GPU

These ends plug into your graphics card. The 6+2 design allows compatibility with both 8-pin and 6-pin PCIe slots. You get two separate power connections for your GPU. This is useful for high-end cards requiring dual 8-pin inputs. The pins are male, so they plug directly into the card without additional adapters.

Cable Length: 23.6inch+5.9inch (60cm+15cm)

The total reach is about 75 centimeters. The split occurs after 15 centimeters, leaving 60 centimeters for the dual ends. This length helps route cables in mid-tower cases. Shorter cables reduce clutter. Longer cables offer more flexibility for larger cases. Check your case dimensions to ensure this length fits your build without strain.

1007 18AWG, 34*0.178TS Tinned Copper Wire

The wire gauge is 18AWG, which supports standard PCIe power loads. Tinned copper resists corrosion better than bare copper. This construction aims for better durability and signal integrity. Thicker wires reduce resistance. This matters for high-power graphics cards. It ensures stable voltage delivery. Compare this with standard cables to see if the build quality meets your needs for long-term reliability.

Build Quality and Physical Layout

According to the listing, this adapter uses 18AWG tinned copper wire with a 34*0.178TS construction. The manufacturer claims this offers higher quality than regular cables. You get a black braided outer jacket. This material choice helps protect the internal conductors from abrasion and heat. It also keeps the cable tidy inside your case. The total length is listed as 75 centimeters. This breaks down into a 60cm main section and a 15cm extension. This specific layout allows you to reach two separate GPU slots from a single PSU connector. The model number is OT-CS-ADP-001. The form factor is ATX. This confirms it is designed for standard ATX power supplies. You must match the 8-pin male end to your PSU. The two 6+2-pin ends go to your graphics card. The black finish blends with most modern builds. The braided sleeve adds a clean look. It does not change the electrical performance. It simply organizes the wires. You should route the 60cm section first. Then use the 15cm extension to reach the second connector. This design saves space near the PSU. It reduces cable clutter in the main chamber. The tinned copper ensures good conductivity. It resists corrosion over time. This is a practical solution for users with high-power GPUs. It relies on the PSU providing enough current. Check your power supply manual before installing.

Setup And Daily Use Guide

Setting up this adapter requires careful attention to connector types. You must plug the single 8-pin male end into your Corsair modular power supply. The listing specifies this is an ATX 8-pin socket, not a PCIe socket. Using the wrong socket can damage components. The other end splits into two PCIe 6+2-pin male connectors. These plug directly into your graphics card’s power inputs. The cable measures 75 centimeters in total length. This includes a 60-centimeter main section and a 15-centimeter split section. This length provides enough slack for typical case layouts. You should route the cable to avoid blocking airflow or obstructing other components. The braided jacket helps manage cable clutter. This adapter is strictly compatible with Corsair RM, RMX, RMi, HX, HXi, AX, AXi, SF, TX, TX-M, CS, CS-M, CX, and CX-M series units. It does not work with other brands. The listing warns that the connectors are not interchangeable. You cannot swap the PSU end with the GPU ends. In daily use, you rely on the 18AWG tinned copper wire to deliver power. The wire construction supports stable connections for high-draw GPUs. You simply connect the PSU, then plug both ends into your graphics card. No software or additional tools are needed. The black color blends with standard PC builds. Ensure your PSU model is in the supported list before installation. The adapter adds two power options where only one existed. This is useful for cards requiring dual 8-pin connections from a single modular cable.

Compatibility and Setup Notes

Before you buy this adapter, verify your power supply model. The listing states it only works with Corsair RM, RMX, RMi, HX, HXi, AX, AXi, SF, TX, TX-M, CS, CS-M, CX, and CX-M series units. Using it with other brands or models may cause issues. You must ensure your PSU has the correct ATX 8-pin modular output, not a PCIe 8-pin socket. The connectors are not interchangeable. You also need a graphics card with two PCIe 6+2-pin slots. This cable adds length, so check your case for enough space. Keep the braided jacket clean and avoid sharp bends. This adapter is a niche solution for specific Corsair users. It does not replace a new power supply if your unit lacks the required outputs. Consider other options if your PSU is not on the compatible list. This product fits into the broader category of PC Power Supplies & UPS accessories, serving as a bridge for specific hardware configurations rather than a standalone power source.

Check before you buy

• Verify your PSU is a Corsair RM, RMX, or similar listed series.
• Ensure the PSU has an ATX 8-pin modular output socket.
• Check that your GPU has two PCIe 6+2-pin power slots.
• Confirm your case has enough room for the 75cm cable length.

The product at a glance

1

OwlTree 8-Pin to Dual 8-Pin PCIe Cable

Best for: Corsair modular PSU users with dual 8-pin GPUs

Form Factor

ATX

View on Amazon: OwlTree 8-Pin to Dual 8-Pin PCIe Cable Affiliate link

This OwlTree adapter converts one ATX 8-pin male connector from your power supply into two PCIe 8-pin (6+2) male connectors for your graphics card. It uses 18AWG tinned copper wire and measures 75 centimeters total in length. The cable is designed specifically for Corsair RM, RMX, RMi, HX, and similar modular series power supplies. You need this if your GPU requires dual 8-pin power but your PSU only provides one available 8-pin PCIe cable.

Pros

• Converts one ATX 8-pin PSU output to two PCIe 8-pin (6+2) GPU inputs
• Uses 18AWG tinned copper wire for reliable current delivery
• Total cable length is 75 centimeters (60cm + 15cm segments)
• Compatible with Corsair RM, RMX, RMi, HX, HXi, AX, and TX series PSUs

Cons

• Limited to Corsair modular power supply models only
• Connectors are not interchangeable between PSU and GPU ends
• Single adapter may not support high-end GPUs requiring more than two 8-pin connections

Good fit if

• You own a Corsair modular power supply from the RM, RMX, or HX series
• Your graphics card requires two 8-pin PCIe power connectors
• You need a direct extension to reach your GPU without using multiple cables

Skip if

• You use a power supply brand other than Corsair
• Your GPU requires more than two 8-pin PCIe connectors
• You need a cable that works with both CPU and GPU power inputs simultaneously

Verdict: OwlTree 8-Pin to Dual 8-Pin PCIe Adapter is a practical solution for Corsair PSU owners needing to power GPUs with dual 8-pin connectors. It fits users who have compatible modular units and require a direct, single-cable connection to their graphics card.

Specifications side by side

Frequently asked questions

See also

• owltree braided atx psu 8 alternatives
• best PC power supplies under 50
• keystone 8 review
• amana 8 review