VERTEX GX-1200 1200W Power Supply, ATX 3.0 & PCIe 5.0 Ready

UPDATE: When I originally ordered this PSU it was ATX 3.0 and my unit had some issues with mild coil whine even after a replacement. I switched to an NZXT C1500 and sold the original PSU to a friend. I had originally given the PSU a 4-star rating. I just changed my PC case to downsize my build foot print as such while the NZXT C1500 fit it was the maximum possible PSU length and I couldn’t reinstall the cable/SSD cover and so I decided to reordered this PSU. I was pleasantly surprised to see that its been refreshed and it’s now an ATX 3.1 with a 12VHPWR 2x6 it’s got a really distinct blue head on the connector now which will easily tell you if it’s fully seated hopefully mitigating any issues or potential fire hazards. Another new surprise is that now Seasonic includes cable combs for your PSU cables. I always thought this was a strange omission since they made such a big deal about the individually sleeved cables. This makes the cables look much cleaner in my build and overall elevates the PSU compared to before. The last and nicest surprise for me is that at idle or under load my PSU is nearly slient. I can’t hear any coil whine and it’s only audible via the fan when my ear is directly next to the case where the PSU is. This is excellent and now the only coil whine I hear in my build is rather obnoxiously from my 4090 FE. Overall this is great revision to an already excellent PSU. My only real gripe is the price. There are plenty of other PSUs in this spec at lower price points. That said Seasonic is well known for their reliability and honoring their lengthy 12 year warranties without fail. New rating for the ATX 3.1 variant is 5-stars.

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.

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.

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.

Solid power supply for my homelab. Plenty of headway for more powerful hardware and the provided connectors seem very high quality.

As expected from Seasonic it works perfectly and has plenty of cables. The were nice enough to send me the updated power cable for my 5090 for the cost of shipping despite being past the 90 day cutoff from day of purchase. It hasn't melted yet after a couple months of gaming. Power supply is quiet and I don't notice it. As it should be.

great PSU, easy to install and use. enough power to supply my 5090 and 9950 cpu. the customer service sent me ATX3.1 cable so no need to upgrade it.

Works like a charm

The best of the best !

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.

Ça tourne nickel et on ne l entend pas top

mis dans une serveur avec un threadripper 3960x et 4 gpu (3080ti, 2080ti, 3060 et A2000) et tout tourne parfaitement.

Envío rápido y todo bien. Llevo ya mas de 18 meses con la PSU y todo perfecto. Producto recomendable y buena marca