Choosing pc power supplies & cables is less about picking the highest number and more about solving the right part of the build. A full ATX power supply serves a different role from a short specialty cable or a graphics-card extension. Start by deciding whether you need a complete power unit, then narrow the cable choices by the exact connector wording in the title.
Quick take
The ATX 1000W Full Modular Power Supply is the cable-management-oriented complete-unit choice, with a black finish and full modular design. GAMEMAX takes the other full-unit route with a white ATX 3.0 PCIE 5.0 model carrying ARGB and 80+ Gold wording. For cables, the Dual PCIe 8Pin to CPU 8Pin cable is targeted by name at NVIDIA Tesla K80, P40, and P100, while the HUHOU cable uses an 8-pin female connection that branches to dual 8-pin 6+2 male ends.
Listed-price comparison
| Choice | Listed price | Relative position |
|---|---|---|
| Dual PCIe-to-CPU cable | USD 9.90 | |
| T.F.SKYWINDINTL full modular power supply | USD 86.10 | |
| HUHOU dual 8-pin extension cable | USD 13.99 | |
| GAMEMAX ARGB power supply | USD 119.99 |
The two cable arrangements sit at the lower end of the range, while the two complete power supplies account for the higher-price choices. That makes the first decision-cable versus power unit-more useful than comparing the four as interchangeable parts.
Decision matrix
- A black full-modular ATX setup: Choose the T.F.SKYWINDINTL unit; its description specifically calls out modular cable management.
- A white system with ARGB styling: Choose the GAMEMAX unit, whose title identifies a white ARGB design and ATX 3.0 PCIE 5.0 specification.
- The named Tesla K80, P40, or P100 cable task: Choose the Dual PCIe 8Pin to CPU 8Pin cable, which is explicitly named for those NVIDIA Tesla models.
- An 8-pin female to dual 6+2 graphics-card cable arrangement: Choose the HUHOU extension cable, matching that connector description.
Product notes
Dual PCIe 8Pin to CPU 8Pin Cable for Tesla K80 P40 P100

This is the focused pick when the required connection is the Dual PCIe 8Pin to CPU 8Pin arrangement named in the title, especially for a setup involving the NVIDIA Tesla K80, P40, or P100 names called out there. Its USD 9.90 price makes it the lowest-priced item in this comparison, but it should be approached as a dedicated cable choice rather than a replacement for a complete power supply. The listed 12.5CM length is another defining constraint: it is a short cable intended for a specific connection scenario, not a general-purpose system power unit.
T.F.SKYWINDINTL ATX 1000W Full Modular Power Supply

Pick this power supply when full modular construction and cable management are central to the build plan. It is described as a standard ATX unit and lists 20+4 Pin and 4+4 CPU connectors, while the full-modular design gives it a clear identity among the complete power supplies here. The title also includes an ARGB fan, and the attributes list one fan. Its limitation is visual rather than functional: black is the stated color, so it is less aligned with a build planned around the white finish named on the GAMEMAX alternative.
HUHOU GPU 8-Pin Female to Dual 8-Pin 6+2 Cable

The HUHOU cable suits a build that specifically calls for an 8 Pin PCI Express female end leading to two 6+2 Pin PCI Express male connectors. That is a more defined graphics-card cable arrangement than the Tesla-named cable above, and the title identifies it as an extension cable. The black and yellow color scheme is a concrete styling consideration for builds where exposed cable appearance matters. It is not a complete power unit; its role is confined to the female-to-dual-male PCIe connection described, so choose it for that exact cable format rather than for full-system power.
GAMEMAX 1050W ATX 3.0 PCIE 5.0 ARGB PSU

Choose the GAMEMAX when a white complete power supply with ATX 3.0, PCIE 5.0, ARGB, and 80+ Gold wording is the direction you want for the system. Its title presents a 1050W designation and the description positions it for gaming and office use, giving it a broad complete-unit role beside the cable-only choices. At USD 119.99, it is the highest-priced selection in this group. The white finish is also a deliberate visual commitment, making it a more natural match for a white-centered build than for one organized around black components.
Final recommendation by use case
For an ATX build prioritizing modular cable routing in a black finish, select the T.F.SKYWINDINTL Full Modular Power Supply. Choose the GAMEMAX for a white build where its ATX 3.0 PCIE 5.0 and ARGB title details fit the plan. For the explicitly named Tesla K80, P40, or P100 cable connection, the short Dual PCIe-to-CPU cable is the direct match. If the job is an 8-pin female connection splitting to dual 6+2 PCIe male ends, the HUHOU cable is the purpose-built choice.