Wattage exceeds total system draw by 20-30% headroom
80+ Gold or higher for efficiency
Modular cables reduce clutter in your case
💰 Mid-range builds: 650-750W. High-end with RTX 4080+: 850W-1000W+
FILTERS
🔍
SORTVIEW
ProductWattsRatingModularColorValuePrice
Corsair RM1200x SHIFT ATX 3.0
Corsair★★★★★4.5
1200W
80+ Gold
Full
Black
—
$194.99
Specifications
Watts1200W
Rating80+ Gold
ModularFull
Form FactorATX
ATX 3.0Yes
Fan Size140mm
depth160
ColorBlack
value27
RGBNo
Fans1
Customer Reviews★★★★★5.0 · 5 reviews
★★★★★Couldn't be happier; what a design!
I’ve always hated how traditional PSU cables connect — reaching around the back, cramming fingers into tight spaces. That’s why I was excited about the Corsair Shift 1200X’s side-access design, and I’m happy to report: in real-world use, it’s even more convenient than I expected.
✅ Ease of installation: The side-mounted connectors make cable management a breeze, especially in larger cases where you have the rear panel clearance. For newer PC builders, this layout is much easier to work with compared to standard designs.
⚠️ Important tip: Before you buy, check your case dimensions carefully. If you’re building in a micro-ATX or ITX case, measure twice — this PSU’s side-access layout requires extra clearance on the rear side panel that small cases may not have.
✅ Noise & cooling: I can barely hear this PSU even under load, so I assume it’s cooling efficiently. No noticeable coil whine or fan ramping in my system.
✅ Cabling quality: I was pleasantly surprised by the included Corsair Type 5 cables — they’re flexible, well-made, and didn’t make me feel the need to swap them for aftermarket ones.lling I figured I would do a cable swap but was actually satisfied by the quality of cables it came with already
TheLEGinCLEGG · 2025-05-24 · via amazon
★★★★★Nice power supply if your case has room for side connection points
This is for the RM1200x P/S: Installed and worked perfectly in a Fractal North XL case. Also works well with an AMD RX 7900 XTX GPU since it had plenty of power connections and cables. (This GPU really needs three cables to power it up). I really liked the connectors being on the side, the obvious draw back is you need a larger case for this to work.
Darrel · 2025-10-21 · via amazon
★★★★★Highest quality PSU, yet again
Corsair delivers again! This is the third time I've used a Corsair power unit for a self/custom build, and with EVGA gone, I will never stray from them again! I can't speak to their peripherals, but the power units are incredibly high quality, have decent tech support, and come with connectors that just about every enthusiast/custom builder would ever need. The cables can bit a little bit stiff, but they do sell (for a premium price) softer and more flexible cables on their site. I wish these custom cables were a little bit cheaper, but it does speak to how modular and high quality their PSUs are.
Sweet Sweet Goods · 2025-08-30 · via amazon
★★★★★Corsair RM1200x Shift
A simple plug and play, I have it in a 802 silent base and it's a tight fit on the back panel, but it's a fit.
I'd recommend you MAKE SURE you properly route the cables so that they do not interfere with the side panel before closing, no forcing the things closed
No coil whine on full load on my unit
I'd say the one thing that influencers are pushing this thing for is not applicable -- the ease of getting to these cables to swap things about when necessary.
The routing is wonderful, but the plugs are actually puny, as in like the size of a male's pinky where the fingernail starts, maybe 9-15mmX5mm, depending on which plug it is, and they're tightly packed, so it's still a PITA to get stuff in and out
All that said, I can use the extra space in the front to fit in more filtered fans, where traditional layout plugs would interfere with the space, so highly recommend it for that reason alone
Definitely recommend it
Michael · 2023-05-12 · via amazon
★★★★★Corsair RM1200 ATX Computer Power Supply
Corsair computer power supplys pretty much set the standard for reliability and durability. Bought this for my daughter's new computer build. Wanted a heavy duty power supply to be able to support any video card or other high power demands. It runs quiet and cool even under load.