Seasonic CORE GX White ATX 3.1 650W Fully Modular PSU
Seasonic
Seasonic CORE GX White ATX 3.1 650W Fully Modular PSU
The Seasonic CORE GX White ATX 3.1 650W Fully Modular PSU is designed for PC enthusiasts and system builders who want a clean, white-themed build without sacrificing efficiency or reliability. It delivers 650 W of fully modular power with 80 PLUS Gold certification and full ATX 3.1 and PCIe 5.1 compliance, making it ready for the latest platforms and graphics cards. A 7-year worldwide warranty backs it up, and a bundled adapter cable means it works with older GPUs too.
Why this product
ATX 3.1 and PCIe 5.1 Ready
Complies with the latest ATX 3.1 and PCIe 5.1 standards, ensuring compatibility with current-generation GPUs and motherboards without requiring adapter workarounds for new hardware.
80 PLUS Gold Efficiency
Certified 80 PLUS Gold, meaning it converts power efficiently and generates less waste heat — keeping your system cooler and your electricity bills lower.
Fully Modular White Cables
Every cable is removable, and all included cables are white with a braided pattern — ideal for builders who want a clean, coordinated interior aesthetic.
Quiet Cooling at 120 mm
A 120 mm Hydro Dynamic Bearing fan paired with Smart and Silent Fan Control keeps noise to a minimum under typical loads while maintaining adequate airflow.
Legacy GPU Adapter Included
A 12V-2x6 to 2× 8-pin PCIe adapter cable is included in the box, so users with older graphics cards can upgrade their PSU without replacing their GPU.
7-Year Worldwide Warranty
Backed by a 7-year worldwide manufacturer's warranty from Seasonic, providing long-term coverage for a critical system component.
- Maximum Power650 W
- Efficiency80 PLUS® Gold
- ATX StandardATX 3.1
- PCIe StandardPCIe 5.1
- ModularFully Modular
- Dimensions140 × 150 × 86 mm
- Warranty7 Years Worldwide
- Cable ColourWhite with braided pattern
- SKUSEA-734
- EAN4711173878704
- Compatible with ATX and EPS form-factor motherboards and cases — the standard for most desktop PC builds.
- Supports current-generation GPUs requiring 12V-2×6 (PCIe 5.1) connectors.
- Works with older GPUs using 8-pin PCIe connectors via the included 12V-2x6 to 2× 8-pin adapter cable.
- Accepts universal AC input from 100 V to 240 V at 50/60 Hz, making it usable worldwide without a voltage switch.
- High-end GPUs with TDP spikes well above 650 W (such as certain flagship cards under full transient load) should be verified against system-total power draw before purchase.
- Not suitable for SFX or other small form-factor cases — this is a standard ATX-sized unit measuring 140 × 150 × 86 mm.
Best for
- White-themed build enthusiasts who need a matching PSU — fully modular white braided cables coordinate with white cases and components.
- Mid-range gaming builds where 650 W is sufficient and 80 PLUS Gold efficiency provides a meaningful cost saving over bronze-tier units.
- Long-term builders who value warranty coverage — the 7-year worldwide warranty is longer than most competing units at this price tier.
- Upgraders keeping their current GPU — the included legacy PCIe adapter means there is no need to buy a separate cable to pair this ATX 3.1 unit with an older graphics card.
- Noise-sensitive users who want a quiet system, as the HDB fan and Smart and Silent Fan Control are designed to minimise audible output under normal loads.
Trade-offs
- Small form-factor builds — at 140 × 150 × 86 mm, this unit requires a standard ATX case and will not fit SFX or ITX enclosures.
- High-end workstation or enthusiast GPU setups where total system power draw exceeds 650 W — users should calculate their full system TDP before buying.
- Builders committed to an all-black aesthetic — the cables and unit are white; a black variant exists in the CORE GX line but is a separate product.
- Users who need more than six protection types — it covers OPP, OCP, OTP, OVP, SCP, and UVP, but additional features beyond these are not specified.
The updated Seasonic CORE GX White ATX 3.1 Series complies with the latest ATX 3.1 and PCIe 5.1 standards and includes four output ranges from 1000 W to 650 W in both black and white colors.
Catering to a broad spectrum of PC enthusiasts and system builders, these power supplies provide a fine balance between cost and performance.
The 80 PLUS® Gold certified Seasonic's Core GX White line is a fully modular design equipped with white cables featuring a braided pattern.
These power supplies are solid performers for a large range of applications, where a 120 mm Hydro Dynamic Bearing fan is combined with Seasonic's Smart and Silent Fan Control to ensure the optimal cooling performance at the lowest possible noise level.
These quality power supplies are backed up by Sea Sonic's 7-year worldwide manufacturer's warranty.
To ensure compatibility with older GPUs, the CORE White GX ATX 3.1 includes a 12V-2x6 to 2× 8-pin PCIe adapter cable. It delivers reliable power up and works seamlessly with graphics cards from previous generations. This cable makes it easy to upgrade your PSU without changing your GPU—perfect for users who want next-gen power with legacy support.
In Sea Sonic's patented design feature full modularity comes hand-in-hand with the extensive use of SMD technology to increase the overall performance and reliability of this power supply. The simple and inventive layout scheme helps to attain unsurpassed quality and performance, where efficiency is further enhanced by minimized line resistance, reduced voltage drop and lower impedance.
Reduced component count and better space utilization facilitate optimal air flow inside the case and promote heat dissipation, proper cooling and ultimately longer product life.
Your 12V-2×6 cable must be connected with one end to the PSU and the other end to your GPU. For safety and stability, ensure both connectors are fully INSERTED, CLICK-LOCKED, and TIGHT before powering on your system. DO NOT bend or apply force to the cable after it is plugged into place.
Specifications are correct at time of publication but may change without prior notice. Should you have any questions, please contact Seasonic Support.
General
| Brand | Seasonic |
|---|---|
| Model Number | SRP-CGX651-A5A32SF-W |
| Form Factor | ATX/EPS |
| Maximum Power | 650 W |
| Modular | Full Modular |
| Dimensions | 140 × 150 × 86 mm |
| Warranty | 7 Years worldwide manufacturer's warranty |
Efficiency & Standards
| 80 PLUS Certification | 80 PLUS® Gold |
|---|---|
| ATX Standard | ATX 3.1 |
| PCIe Standard | PCIe 5.1 |
Power Input
| Input Voltage | 100 – 240 V |
|---|---|
| Input Frequency | 50/60 Hz |
| Input Current | 9 – 4.5 A |
Cooling & Protection
| Fan Size | 120 mm |
|---|---|
| Fan Bearing | Hydro Dynamic Bearing (HDB) |
| Fan Control | Smart and Silent Fan Control |
| Fan Life Expectancy | 25,000 hours at 40 °C |
| Protections | OPP, OCP, OTP, OVP, SCP, UVP |
| Cable Colour | White with braided pattern |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.