Power supply · MODEL NOTES
Seasonic FOCUS GX-1000 ATX 3.1 v5
More capacity does not automatically mean more verified GPU connections
FOCUS GX-1000 ATX 3.1 v5 is a candidate when the actual build needs 1000 W but the case benefits from a 140 mm ATX body. Compare its confirmed wiring against the RM1000x rather than assuming the higher wattage implies additional conventional cables. A clear connector plan and sufficient routing clearance are more useful than buying maximum capacity as an unspecified future-upgrade promise.
Consider it when
- A justified high-demand build with an exact v5 harness arrangement confirmed before purchase.
Look again when
- The configuration needs several independently powered devices and the available cable evidence is incomplete.
THE SPACE IT NEEDS
Leave room beyond the PSU body
- PSU body length
- 140mm
The body length excludes the working space needed for plugs and cable bends. Drive cages and the case layout can reduce that space.
Check power and cable requirements ↗Based on the manufacturer specification record, checked . Check the exact revision and installation instructions before buying.
The checks that can change your choice
The recorded independent cable count remains two
For this 1000 W v5 model, the catalog confirms two single-connector conventional PCIe runs and leaves the extra dual cable’s simultaneous availability unresolved. The native 16-pin wattage also needs confirmation. Validate the exact manual, delivered cable set and full system load rather than inferring missing values from capacity.
Check the whole power path
Compare the CPU and exact graphics card requirements with the PSU capacity and included connector arrangement. Count independent cable runs where the GPU manual requires them. Use only cables approved for this exact power supply; similar-looking modular plugs do not establish compatible wiring.
Published specifications
1000 W fully modular ATX PSU; ATX 3.1 / PCIe 5.1; v5 revision; native dual-color 12V-2x6; 140 mm depth; 80 PLUS Gold.
| Brand | Seasonic |
|---|---|
| Exact model | FOCUS GX-1000 ATX 3.1 v5 |
| Manufacturer model number | FOCUS GX-1000 ATX 3.1 v5 |
| Hardware revision | v5 |
| Form factor | ATX |
| PSU rated output | 1000 W |
| PSU body length | 140 mm; cable connectors need additional space |
| Verified independent PCIe cable minimum | 2 cable(s); additional unverified cable paths are not counted |
| Native 16-pin GPU cable | 1 supplied connection(s) · 12V-2x6; use the exact model’s supplied cables |
| CPU EPS 8-pin ends | 2 |
| Independent EPS cables | 2 |
| SATA power connectors | 8 |
| SATA power cables | 2 |
Explicit v5 model, not 2019 FOCUS GX or 2024 v4. Manufacturer cable table lists 2 single-connector PCIe cables plus one cable with two PCIe connectors. The PSU-side connection and simultaneously available 8-pin capacity of that dual cable were not established, so automatic connector totals remain unknown. Native 16-pin wattage also requires confirmation.
A different choice worth checking
These alternatives address related choices. Recheck their platform, connections and fit before treating one as a replacement.
Follow the check that matters to your build
Sources and review notes
RigAtlas connects manufacturer specifications to component choices. This page is document-based analysis; it does not claim a hands-on test or a current store offer.
- Seasonic — exact model specificationsEvidence checked
See how it fits your list.
Review this component with your existing selections before making the change.