TechShelf Guide

PC Power Supplies & Cables: Choose a Full ATX PSU or the Right GPU Cable

Choose between a complete 650W ATX power supply, a white extension kit, a 6-pin-to-8-pin converter, and a dual 8-pin GPU cable by matching the job at hand rather than comparing them as like-for-like parts.

Last updated Aug 24, 2026

Shopping for pc power supplies & cables can get confusing fast because a full power supply, a sleeved extension kit, a connector converter, and a split GPU cable all solve very different problems. The useful first decision is whether your build needs a complete ATX unit or a cable intended to route, extend, convert, or branch an existing PCIe connection. Once that is clear, the four choices below separate neatly by job.

Quick take

The Segotep is the complete power-supply choice in this group. Asiahorse is aimed at coordinated cable presentation across motherboard, CPU, and GPU connections. The 6-pin-to-8-pin converter is the narrowly targeted pick for one specific PCIe connector transition, while the HUHOU cable is built around one 8-pin input and two 6+2-pin outputs. Do not treat the price range as a straight performance ladder: these are different categories of PC components.

Listed price comparison

ItemListed pricePrice position
6-pin-to-8-pin converter cableUSD 4.96
Asiahorse Snow White extension kitUSD 19.99
HUHOU dual 8-pin extension cableUSD 13.99
Segotep 650W ATX PSUUSD 52.99

Decision matrix

  • You need a complete ATX power supply: Choose the Segotep 650W Power Supply. It is the one option presented as a complete PSU rather than a cable accessory.
  • You want a coordinated white cable-routing set: Choose the Asiahorse Snow White kit. Its four pieces cover motherboard, CPU, and PCIe GPU extension duties.
  • Your connection calls for a 6-pin PCIe input and an 8-pin PCIe output: Choose the 6-pin-to-8-pin converter cable.
  • You need one 8-pin female GPU connection leading to two 6+2-pin male ends: Choose the HUHOU dual-output extension cable.

Product notes

6-pin to 8-pin PCI Express Power Converter Cable GPU Video Card PCIE PCI-E 18AWG

6-pin to 8-pin PCI Express Power Converter Cable GPU Video Card PCIE PCI-E 18AWG

This cable makes sense for the specific job stated in its name: connecting a 6-pin PCIe power cable to a graphics-card connection that requires an 8-pin PCIe connection. The connector ends are clearly defined as 6-pin PCI Express on one side and 8-pin PCI Express on the other, keeping the choice focused rather than broad. Its 18AWG wiring is also identified in the title. The limitation is equally clear: the listed arrangement is a one-to-one 6-pin-to-8-pin converter, not the dual 6+2-pin output layout offered by the HUHOU cable. Pick it for that direct connector change, not for a multi-connection cable setup.

Asiahorse 18Awg PSU Cable Extension Sleeved Custom Mod GPU, Video, PC Snow White

Asiahorse 18Awg PSU Cable Extension Sleeved Custom Mod GPU, Video, PC Snow White

The Asiahorse kit is for builders who want matching Snow White extensions across several visible PC connections. It includes a 24-pin ATX motherboard extension, a 4+4-pin EPS CPU extension, and two 6+2-pin PCI-E GPU extensions, plus matching cable combs to keep the individual wires evenly arranged. Soft nylon braiding and 18AWG wiring are part of the stated design. This is a practical choice when a coordinated cable-routing look matters across more than the graphics card. Its limitation is scope: it is an extension kit, not a complete ATX power supply, and it does not take the place of the Segotep PSU.

Graphics Card GPU VGA PCIe 8 Pin Female to Dual 8 Pin (6+2) Male Extension Cable

Graphics Card GPU VGA PCIe 8 Pin Female to Dual 8 Pin (6+2) Male Extension Cable

Choose the HUHOU cable when the desired connector layout starts with an 8-pin PCIe female end and branches to two 8-pin 6+2 male ends. That branching format is the key distinction here, and the black-and-yellow cable finish gives it a markedly different appearance from the all-white Asiahorse set. The title and connector details both point to GPU PCIe use, rather than CPU power. Its trade-off is that this is a purpose-specific dual-output cable configuration. It is not the direct 6-pin-to-8-pin conversion described by the converter cable, nor is it a complete PSU for an ATX case.

OPEN BOX 650W Power Supply 80 Plus Gold Non-Modular ATX Gaming PC Case PSU

OPEN BOX 650W Power Supply 80 Plus Gold Non-Modular ATX Gaming PC Case PSU

The Segotep is the choice for a shopper replacing or selecting the actual power supply rather than adding a cable accessory. Its listed configuration is a 650W, 80 Plus Gold, non-modular ATX unit with a 20+4-pin connector and a 120mm fan. That makes it the natural match for the complete-PSU use case in this comparison, where the other three entries focus on cable connections or cable presentation. Two details should shape the decision: the condition is marked open box, and the design is non-modular. Those are product-specific characteristics rather than interchangeable cable features, so this option belongs in a different buying decision from the cable choices.

Final recommendation by use case

For a complete ATX power-supply purchase, choose the Segotep 650W Power Supply. For a coordinated Snow White extension set spanning several PC connections, choose Asiahorse. Select the 6-pin-to-8-pin PCI Express converter when that exact connector transition is needed. Choose the HUHOU cable when the build calls for its 8-pin female-to-dual-6+2-pin male arrangement. The right pick is determined by the connection job or full-PSU need, not by treating these four items as substitutes.

Products in this article
6-pin to 8-pin PCI Express Power Converter Cable GPU Video Card PCIE PCI-E 18AWGUSD 4.96View on eBayAsiahorse 18Awg PSU Cable Extension Sleeved Custom Mod GPUUSD 19.99View on eBayGraphics Card GPU VGA PCIe 8 Pin Female to Dual 8 Pin (6+2) Male Extension CableUSD 13.99View on eBayOPEN BOX 650W Power Supply 80 Plus Gold Non-Modular ATX Gaming PC Case PSUUSD 52.99View on eBay
6-pin to 8-pin PCI Express Power Converter Cable GPU Video Card PCIE PCI-E 18AWGUSD 4.96View on eBayAsiahorse 18Awg PSU Cable Extension Sleeved Custom Mod GPUUSD 19.99View on eBayGraphics Card GPU VGA PCIe 8 Pin Female to Dual 8 Pin (6+2) Male Extension CableUSD 13.99View on eBayOPEN BOX 650W Power Supply 80 Plus Gold Non-Modular ATX Gaming PC Case PSUUSD 52.99View on eBay

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