Seasonic Vertex PX-1200-1200W - 80+ Platinum - ATX 3.0 & PCIe 5.0 Ready - Fully Modular - Premium Japanese Capacitors - 12 Year Warranty - Nvidia RTX 40/50 & AMD GPU Compatible

This has been a great stable power supply. Runs my RTX 5090 perfectly. This is the 2nd time I've went with Seasonic and would now highly recommend them for their power supply units.

alex · 2026-05-03 · via amazon

Runs great. Fantastic warranty. Comes with all you need just can’t fit in place of a tiny PS. It’s full size. Great price especially with a Longer than average warranty. If you have a newer case ( not like smaller Dell or such it takes almost no time to install. Even comes with the new 12pin connector for the latest and greatest GPU. As far as heat, far less of a problem than cheaper power supply’s. I run Server with 7 drives and dual Xeon processors. Heat has not been a problem for me. Runs warm but considering it’s 1200watts, it’s average on the cooler side.

Alan Heath · 2025-05-05 · via amazon

Good PSU i trust seasonic

Will · 2026-02-09 · via amazon

Worked great for not even five months. 7800X3D, 4090, Asrock PG650 lightning mobo. Worked great, then one day computer wouldn't turn on at all. Removed power supply , plugged in the " Test " plug, yeah, sure enough that worked. plug it back in.... nope. wouldn't turn on. swapped over to my 11 year old Corsair TX850W (non modular, oh well) works like a champ even in retirement. Looks like i'm getting another corsair.

Matt V · 2026-03-06 · via amazon

My vertex gx-1200 came w/ the 12VHPR cable. That's fine as that is what was described and the seasonic website even states that you might get either the 12VHPR or 12V-2x6 depending on when the unit shipped. If you contact Seasonic within 90 days of purchase (proof required) and request a 12V-2x6 replacement cable they will send it free of charge. only pay shipping after 90 days. This thing is a sleek, solid and silent. Great cable designs make for easy manipulation, minimal bulk and clean look. Seasonic just made a lifelong customer...not that it will matter too much w/ a 12 year warranty.......

nathanael anthony · 2025-02-20 · via amazon

MSI

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Newegg

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Newegg (Open Box)

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