








⚡ Power your future with silence and style.
The Seasonic VERTEX GX-1200 is a 1200W 80+ Gold certified power supply designed for professional-grade PC builds. It supports the latest ATX 3.0 and PCIe 5.0 standards, including the new 12VHPWR cable for next-gen GPUs. Featuring a fully modular design, premium Japanese capacitors, and a quiet 135mm fluid dynamic bearing fan with hybrid silent control, it delivers stable, efficient power with minimal noise. Backed by a 12-year warranty, it’s engineered for durability and peak performance in demanding environments.





| ASIN | B0BQRFC497 |
| Best Sellers Rank | #78 in Computer Power Supplies |
| Date First Available | March 2, 2023 |
| Item Weight | 7.26 pounds |
| Item model number | VERTEX GX-1200 |
| Manufacturer | Seasonic |
| Product Dimensions | 7.3 x 13.6 x 4.5 inches |
A**H
Exactly what you get and well worth it!
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.
L**D
Runs a 5090 without spending a fortune. Seasonic 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.
G**S
In love with seasonic
Never been disappointed. After replacing the power supplies in my computer room from junk brands to seasonic, the waste heat went down immediately. I didn't really notice until the next summer, but clearly quality PSUs are worth. I've only had a single seasonic PSU fail of the ~8 or so I purchased and they RMAd it and have no issues with the replacement. Happy customer.
G**G
Seasonic Vertex GX-1000-1000W
Solid , heavy construction , 10 yr warranty . Seasonic is the premium of all power supplies When I buy a power supply I never skimp on quality , and I buy way over what I need . any PSU will only put out what is needed so If the system is needing 700w and its a 1000w psu ot will only put out 700w and run cooler then a psu that has to work at 100% and run hot and stress it out and shorten its life. I like the braided cables , each wire individually wrapped , but still flexible . The only con is that their is no 4 pin CPU cable , just 2 8 pin cables and their made as one unit so no way to put them in a 4 pin motherboard connector
H**L
Exceptional
I've typically used Corsair RM gold series for custom PC builds and upgraded the cables. The performance has always been very good, never a problem but more recently I ordered a Corsair RM 1000x and received a used unit, that reeked and appeared of poor quality. It was returned along with the CableMod upgrade cables, after which I ordered the Seasonic Vertex and what a difference between good and exceptional. The Vertex is super quiet, has a small footprint and comes with premium cables. There's no need to upgrade the cables, the one's that come with the Vertex are easy to work with and look nice. Great PSU!
S**O
Everyone said they were great... instead I found out they don't fully back their own product
After hearing amazing things about this company and its products from all my friends and a bunch of YouTube reviews, I bit the bullet and tried them out; but that turned out to be a waste of money. This product started having fan issues (the fan started clicking) after about 6 months of use... What's worse is that the company requires YOU to spend extra money to send THEM back THEIR defective product. I won't even get into their "advanced replacement" which requires you to PayPal them money... Which sounds super sketch... I will not be buying from the company again - back to Corsair I go.
C**6
Excellent supply
Can't go wrong with Seasonic, run for years without issue. Money well spent.
N**D
Quality PSU
My first Seasonic product for the new rig. As soon as you pull it out the package you can tell its quality. Powering my new rig, its pretty silent also. There's also a hybrid button on it that makes it so the fans only kick on once it hits a certain temp, thought it was a cool option to have. Wish the cables were braided but whatever, they're still good cables. With a 12 year warranty you can't really go wrong. Will be using Seasonic PSU from now on if it lasts me a long time.
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.
A**R
Does not run hot and on the oscilloscope the signal is almost perfect and the life blood of my gaming setup
Trustpilot
4 days ago
1 month ago