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⚡ Power your ambition with silence and style
The Seasonic Vertex GX-1200W is a premium ATX 3.0 power supply delivering 1200 watts of reliable power with a whisper-quiet 135mm fluid dynamic bearing fan. Its fully modular design and next-gen 16-pin Gen 5 PCIe cable make it ideal for cutting-edge GPUs, ensuring clean builds and future-proof compatibility. Backed by Seasonic’s renowned quality and a 2-year warranty, it’s the ultimate choice for professionals demanding silent, stable, and scalable power.





| ASIN | B0BQRFC497 |
| Best Sellers Rank | 58,230 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 586 in Power Supplies |
| Brand Name | Seasonic |
| Compatible Devices | Personal Computer |
| Connector Quantity | 2 |
| Connector Types | ATX |
| Cooling Method | Air |
| Customer Reviews | 4.6 4.6 out of 5 stars (520) |
| EU Spare Part Availability Duration | 12 Years |
| Fan Size | 120 Millimetres |
| Form Factor | ATX |
| Global Trade Identification Number | 04711173877721 |
| Item Dimensions | 18.5 x 34.5 x 11.4 centimetres |
| Item Weight | 3.3 Kilograms |
| Manufacturer | Seasonic |
| Manufacturer Part Number | VERTEX GX-1200 |
| Maximum Input Voltage | 264 Volts (AC) |
| Minimum Input Voltage | 110 Volts (AC) |
| Model Name | Vertex GX-1200 |
| Model Number | VERTEX GX-1200 |
| Number of Fans | 1 |
| Output Wattage | 1200 |
| Power Supply Design | Full Modular |
| Product Warranty | 2 year manufacturer |
| System Bus Connector Type | 20+4 Pin |
| UPC | 827676014410 |
| Wattage | 1200 watts |
S**R
Actually ATX 3.1
This is an ATX 3.0 also graded for 3.1 and comes with the nice 12v cable for your 4000/5000 series GPUs. Apparently the 3.1 standard is easier for manufacturers to reach over 3.0, so this one is a sound choice indeed. Hybrid mode is quiet AF and i've yet to hear the fan kick in (5800x3d, 4090)
O**E
top quality
Amazing PSU, a bit costly but worth the money at least for me. I had Msi and Corsair PSUs, Msi suffered fan rattle and Corsair coil whine both returned. Tried to Chatgpt the problem and ended up ordering this one. Top notch!
G**.
The first time I bought a premium power supply from another company and unfortunately I had bad luck. After a thorough checked connection l switching on and PSU blew out the fuse in my main switch. I connected the previous PSU Corsair and fortunately the PC works. Unfortunately, I will not buy a power supply from this company for a long time. I won't take risk again. Thanks fully protection worked. I ordered MSI MEG now.
L**R
Marca eccezzionale sempre soddifatto e il secondo che compro e i cavi sono migliorati parecchio grande seasonic 5 stelle meritate davvero efficiente e silenziosissimo.
T**K
Ça tourne nickel et on ne l entend pas top
C**N
mis dans une serveur avec un threadripper 3960x et 4 gpu (3080ti, 2080ti, 3060 et A2000) et tout tourne parfaitement.
J**S
Seasonic sinónimo de calidad, fe de ello, la garantía que ofrecen. Todas mis fuentes han sido Seasonic, para mis equipos no escatimo en calidad y Seasonic tiene reputación en ello. Si las hay mas baratas, eficientes y todo eso, pero si quieres de lo mejor y dormir tranquilo, esta es tu marca :)
Trustpilot
1 day ago
3 days ago