Buying pc power supplies & cables gets confusing when a complete power supply and a specialized connector cable appear in the same shortlist. The key decision is simple: are you powering the whole system, extending a graphics-card connection, or addressing the short PCIe-to-CPU route named for select Tesla cards? Make that call first, because these four choices serve distinctly different roles.
Quick take
- Start with the component type: the T.F.SKYWINDINTL and Segotep entries are complete ATX power supplies, while the Dual PCIe cable and HUHOU extension are cable accessories.
- Do not let the lower cable prices substitute for a power-supply decision. A cable addresses a specific connection path; an ATX unit is the system-power choice.
- The strongest match comes from exact wording: connector ends for the cables, and form factor, modular layout, or certification language for the power supplies.
Listed-price comparison
| Choice | Listed price | Price position |
|---|---|---|
| Dual PCIe 8Pin to CPU 8Pin Cable | USD 9.90 | |
| ATX 1000W Full Modular Power Supply | USD 86.10 | |
| GPU PCIe Dual 6+2 Extension Cable | USD 13.99 | |
| Segotep ATX 3.0 PCIe 5.0 Full Modular PSU | USD 99.99 |
Decision matrix
- Need a compact cable run: the Dual PCIe 8Pin to CPU 8Pin Cable lists a 12.5CM length.
- Want an illuminated fan detail in a complete supply: the ATX 1000W Full Modular Power Supply title calls out an ARGB fan.
- Matching a black-and-yellow cable appearance: the GPU PCIe Dual 6+2 Extension Cable is specified in black&yellow.
- Looking for a listed 24 Pin connector on a power supply: the Segotep ATX 3.0 PCIe 5.0 Full Modular PSU carries that connector detail.
Product notes
Dual PCIe 8Pin to CPU 8Pin Cable

Choose the Dual PCIe 8Pin to CPU 8Pin Cable when the named connection is for an NVIDIA Tesla K80, P40, or P100 and you specifically need the dual PCIe 8Pin-to-CPU 8Pin arrangement. That makes it a tightly defined cable purchase rather than a general system-power decision. It is identified as a cable, keeping its role separate from the two ATX units here. Its main limitation is reach: the title specifies 12.5CM, which suits a compact route rather than a cable path that needs substantial extra distance. It is best treated as a component-specific connection solution.
ATX 1000W Full Modular Power Supply

Pick the ATX 1000W Full Modular Power Supply when your build calls for a complete ATX unit and you want the modular routing described for keeping a case organized. The listed 20+4 Pin and 4+4 CPU connectors provide a clearly stated core-connection set, while the title also calls out an ARGB fan. It is a build component with a wider role than a PCIe extension cable. One constraint for shoppers comparing certification wording is its 80+ Bronze label; the Segotep entry is identified as 80 Plus Gold instead. Those labels are a distinction, not a complete build recommendation by themselves.
Graphics Card GPU VGA PCIe Dual 6+2 Extension Cable

The Graphics Card GPU VGA PCIe Dual 6+2 Extension Cable is tailored to a GPU power-line extension task. Its connector details pair an 8 Pin PCI Express female end with dual 6+2 Pin PCI Express male ends, making it the appropriate choice when that exact graphics-card-side pattern is what you are routing. The description explicitly separates this GPU-to-GPU splitter from a CPU 8-pin connection, which helps distinguish it from similarly named eight-pin cables. Its limitation is also visible in the configuration: this version is specified in black&yellow, so that appearance is part of the choice. It remains a cable accessory, not an ATX supply.
Segotep ATX 3.0 PCIe 5.0 Full Modular PSU

The Segotep ATX 3.0 PCIe 5.0 Full Modular PSU suits a builder seeking the ATX 3.0 and PCIe 5.0 wording in its title, paired with a native 12VHPWR cable in its description. Its fully modular configuration and flat black cables are positioned for cleaner cable routing, while the 80 Plus Gold certification is described in terms of higher efficiency and lower energy consumption. Choose it when those stated build features matter more than an accessory-only cable. The limitation within this group is cost: at USD 99.99, it carries the highest listed price. It is a complete power supply rather than a connector add-on.
Final recommendation by use case
- Choose the Dual PCIe 8Pin to CPU 8Pin Cable at USD 9.90 only for the Tesla K80, P40, or P100 cable task named in its title.
- Choose the ATX 1000W Full Modular Power Supply for an ATX build where full modular cable management is the main priority.
- Choose the Graphics Card GPU VGA PCIe Dual 6+2 Extension Cable at USD 13.99 when one GPU 8 Pin female connection needs dual 6+2 PCIe male ends.
- Choose the Segotep ATX 3.0 PCIe 5.0 Full Modular PSU when ATX 3.0, PCIe 5.0, and its native 12VHPWR cable are the deciding requirements.