Choosing among pc power supplies & cables gets confusing when one part needs a connector change, another needs more PCIe endpoints, and a full build calls for a new power supply. The useful split is simple: cable entries address a stated connector route, while the Segotep entry is for replacing the power-supply unit. Match the job first. A connector converter is not a substitute for a modular PSU, and a PSU can be more than the task requires when the need is only a specified cable path.
Quick take
Start with the role, not the cost. One group here changes connector paths, another is labelled around a named accelerator configuration, and one is intended for an entire power-supply replacement. The cable titles describe distinct endpoints, so matching those words to the existing connection matters more than treating every PCIe label alike. Use the price comparison to see the separation between cable-level purchases and the power-supply unit, then use the matrix to narrow the kind of work you are doing.
Listed-price comparison
| Item | Listed price | Relative listed price |
|---|---|---|
| Graphics Card GPU VGA PCIe 8 Pin Female to Dual 8 Pin (6+2) Male Extension Cable | USD 13.99 | |
| 6-pin to 8-pin PCI Express Power Converter Cable GPU Video Card PCIE PCI-E 18AWG | USD 4.96 | |
| Dual PCIe 8Pin to CPU 8Pin Cable for NVIDIA TESLA K80 P40 P100 | USD 9.90 | |
| Segotep 850W ATX 3.0 Gaming Power Supply PCIe 5.0 Full Modular 80 Plus Gold PSU | USD 99.99 |
Decision matrix
- Need two matching cable pieces: The HUHOU package description specifies two packs.
- Want 18 AWG wiring in a graphics-card adapter: The 6-pin to 8-pin converter is the direct match.
- Shopping around the NVIDIA TESLA K80, P40, or P100 names: The dual PCIe 8Pin to CPU 8Pin cable is the specifically labelled choice.
- Looking for a listed 24 Pin connector in a power supply: Segotep is the relevant entry.
Product notes
Graphics Card GPU VGA PCIe 8 Pin Female to Dual 8 Pin (6+2) Male Extension Cable

The HUHOU GPU extension cable is aimed at the stated 8 Pin female input branching to two 8 Pin (6+2) male PCI-E ends. The package description specifies two packs, a practical match when a build calls for a pair of the same cable. Its black-and-yellow finish gives a defined appearance for a visible cable run. The limitation is its specialized GPU-to-GPU splitter arrangement: it is not a one-to-one converter. Pick the HUHOU entry for the dual-output layout, rather than when the task is a single direct connector change.
6-pin to 8-pin PCI Express Power Converter Cable GPU Video Card PCIE PCI-E 18AWG

For a specifically named 6 Pin PCI Express input and 8 Pin PCI Express output, this converter cable is the cleanest match in the group. The description identifies durable 18 AWG wiring and frames the cable as a graphics-card power adapter. It suits a shopping list that already has a 6-pin PCIe power cable and calls for the corresponding 8-pin card connection. The tradeoff is format: one connector conversion is described, whereas the HUHOU cable is a branching extension. Keep this choice focused on that defined conversion rather than a cable-splitting setup.
Dual PCIe 8Pin to CPU 8Pin Power Cable for NVIDIA TESLA K80 P40 P100

The dual PCIe 8Pin to CPU 8Pin cable is worth separating from ordinary graphics-card adapters. Its title explicitly names NVIDIA TESLA K80, P40, and P100, giving shoppers with those exact model names a clear route to consider. It is designated as a cable, and the title includes 12.5CM. The constraint is the stated dual PCIe 8Pin-to-CPU 8Pin arrangement, a different route from the converter cable. Choose it for its model-specific naming and connector wording, not as a general substitute for either of the other PCIe cable formats.
Segotep 850W ATX 3.0 Gaming Power Supply PCIe 5.0 Full Modular 80 Plus Gold PSU

The Segotep unit is the choice for an ATX 3.0 and PCIe 5.0 power-supply replacement rather than a connector-only purchase. Its full modular design uses flat black cables, described as improving airflow and cable management. A native 12VHPWR cable is expressly included for PCIe 5.0 graphics cards, while the 80 Plus Gold certification is described as supporting higher efficiency and lower energy consumption. The limitation is scope and cost position: it is the highest-listed complete PSU here, not a cable add-on for a single endpoint change. Favor it when the replacement calls for its listed platform and cable arrangement.
Final recommendation by use case
For a pair of black-and-yellow GPU extensions, select the HUHOU cable. For a basic cable purchase at the lowest listed USD 4.96, choose the 6-pin to 8-pin converter. The 12.5CM title wording makes the dual PCIe 8Pin to CPU 8Pin cable the focused pick for that labelled size. For an 850W ATX PSU replacement, select Segotep.