Choosing pc power supplies & cables gets confusing when connection leads sit beside complete ATX units. Make the scope decision first: replace the computer's power supply, or solve one specific PCIe connection. That single distinction separates the four choices far more clearly than price alone.
Quick take
P2 and P4 are complete power-supply choices, while P1 and P3 address dedicated cable arrangements. The listed-price gap across the group is $76.20, but the range reflects different jobs rather than four interchangeable parts. Start with PSU versus cable, then narrow the power supplies by cable layout or narrow the accessories by the connector pattern named in the title.
Listed price comparison
| Item | Listed price | Price position |
|---|---|---|
| PCIe-to-CPU power cable | USD 9.90 | |
| ATX power supply with ARGB fan | USD 86.10 | |
| HUHOU GPU extension cable | USD 13.99 | |
| Segotep ATX power supply | USD 52.99 |
Decision matrix
- Replacing a whole ATX power supply: focus on P2 or P4 rather than either cable accessory.
- Modular cable management within an ATX PSU: P2 is identified as a full modular power supply.
- A non-modular, open-box 650W direction: P4 matches that combination.
- A cable named for NVIDIA Tesla K80, P40, and P100: P1 is the targeted choice.
- An 8-pin PCIe female connection dividing to two 8-pin (6+2) male ends: P3 fits that graphics-card cable layout.
Product notes
Dual PCIe-to-CPU Power Cable
Dual PCIe-to-CPU Power Cable is for the named NVIDIA Tesla K80, P40, and P100 connection scenario. Its 12.5CM length and new condition make it a clearly defined cable purchase rather than a replacement power supply. That narrow focus is also its limitation: the title ties the lead to a specific Tesla set and a PCIe 8Pin-to-CPU 8Pin format. It is the sensible match when that exact arrangement is already part of the build plan; it is not positioned as a general ATX power unit.
T.F.SKYWINDINTL ATX Power Supply
T.F.SKYWINDINTL ATX Power Supply fits a whole-system build centered on a named 1000W capacity and ATX form factor. Modular cabling gives it its clearest distinction in a comparison that otherwise includes non-modular power and standalone cable pieces. Its 20+4 Pin and 4+4 CPU connectors keep the focus on core PC power connections. The limitation is the same scope that makes it suitable for a PSU replacement: it is an ATX power supply rather than a compact cable accessory for a single graphics-card or Tesla connection. Choose it when the central power component, rather than an add-on lead, is what needs changing.
HUHOU GPU Extension Cable
HUHOU GPU Extension Cable targets graphics-card routing: its 8 Pin PCIe female end divides to two 8 Pin (6+2) male ends. The package contains two cables, giving a tangible reason to choose it for a build that calls for that repeated GPU-cabling pattern. Its main limitation is explicit in the connector role: it is GPU-to-GPU, not CPU 8-pin. That distinction keeps it separate from P1's PCIe-to-CPU title and from a complete power supply. Choose it for the stated graphics-card cable layout, not as a CPU cable.
Segotep ATX Power Supply
Segotep ATX Power Supply brings a named 650W capacity to a complete power-unit purchase, with a 20+4 Pin connector and one fan. It makes sense when the goal is replacing the PSU itself instead of adding a connector lead. The clear limitation is configuration: the unit is non-modular and its condition is open box. Those two details make it a distinct choice for shoppers comfortable selecting an open-box power supply with a fixed cable layout, rather than a modular unit or a dedicated PCIe accessory.
Final recommendation by use case
Choose the T.F.SKYWINDINTL unit when an ARGB fan within a complete ATX power supply is a deciding preference. Pick the Segotep model when its 80 Plus Gold wording and 120mm fan are priorities. The $9.90 Dual PCIe-to-CPU cable is the focused route for a cable-only purchase, while the HUHOU extension cable suits shoppers seeking a two-pack in black and yellow for the named GPU connection arrangement.
