The Seasonic Vertex PX-1200 is a high power PSU focusing on low noise output. The Cybenetics LAMBDA A noise rating means that the unit’s overall noise output is with 20-25 dBA, which is pretty low for a 1200W PSU.
The Seasonic Vertex PX-1200 will be included in my best ATX v3.x & PCIe 5.x PSU picks article.
After the PX-1000, it was high time to look at the PX-1200 model, which offers 200W more and can withstand short-period transient loads of up to 2400W. I wonder why Seasonic didn’t upgrade these units with a 12V-2×6 connector to make them ATX v3.1 compliant when other brands and manufacturers silently upgraded most of their models to the new Intel specification. If you are wondering whether you should get an ATX v3.0 or a v3.1 PSU, read the following article:
The PX-1200 is Platinum certified and utilizes a fully modular cable design. Its price is stiff, exceeding 300 dollars at the time of the review, so it will have tough competition to face since, with that amount, many good choices are available in today’s market. Seasonic believes in this platform else it wouldn’t provide such an extended warranty. Seasonic’s support is good, and this is what you should also look for before you buy a product: the support you will get in case of a problem. Don’t stand only in the warranty period because it doesn’t mean much. Read the details about it (the “small” letters) and quickly search the net to check other users’ opinions about the support provided. Nowadays, you can find user reviews everywhere, but you should take most of them with a grain of salt, to say the least.
ATX v3.1 1200W PSU Reviews:
- Enermax PlatiGemini 1200W ATX v3.1 & ATX12VO PSU Review: The first of its kind!
- XPG Core Reactor II 1200W PSU Review – Platinum > Gold
- Super Flower Leadex VII XP 1200W ATX v3.0 PSU Review
- Thermaltake Toughpower PF3 1200W PSU Review
- Thermaltake Toughpower GF A3 1200W PSU Review
- Montech Titan Gold 1200W PSU Review
- Thermaltake Toughpower GF3 1200W ATX v3.0 PSU Review
- Manufacturer (OEM): Seasonic
- Max Power: 1200W
- Cybenetics Efficiency: [115V] Cybenetics Platinum (91-93%), [230V] Cybenetics Platinum (91-93%)
- Noise: Cybenetics A (20-25 dB[A])
- Compliance: ATX v3.0, EPS 2.92
- Operating Temperature (Continuous Full Load): 0 – 50 °C
- Alternative Low Power Mode support: Yes
- Power 12V combined: 1200W
- Number of 12V rails: 1
- Power 5V + 3.3v: 125W
- Power 5VSB: 15W
- Cooling: 135mm Fluid Dynamic Bearing Fan (HA13525H12F-Z)
- Modular Design: Yes (Fully)
- High Power Connectors: 2x EPS (2x cables), 3x PCIe 6+2 pin (3x cables), 1x PCIe 12+4 pin (600W)
- Peripheral Connectors: 14x SATA (3x cables), 3x 4-pin Molex (1x cable)
- ATX Cable Length: 610mm
- EPS Cable Length: 700mm
- 12+4 pin PCIe Cable Length: 700mm
- 6+2 pin PCIe Cable Length: 750mm
- Distance between SATA / 4-pin Molex: 155mm / 120mm
- In-cable capacitors: No
- Dimensions (W x H x D): 150 mm x 85 mm x 160mm
- Weight: 1.9 kg (4.18 lb)
- Warranty: 12-years
- MSRP (including VAT): $310
Power Specifications
| Rail | 3.3V | 5V | 12V | 5VSB | -12V | |
| Max. Power | Amps | 25 | 25 | 100 | 3 | 0.3 |
| Watts | 125 | 1200 | 15 | 3.6 | ||
| Total Max. Power (W) | 1200 | |||||
I was also waiting for this source, but on Aris’s advice I chose the superflower leadex vii 1200 platinum and I am very happy, better price and better performance, you couldn’t ask for more, in this case Seasonic has not released an excellent product like others times