CORSAIR RM1000e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2×6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics Gold Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – Black

Solid, Quiet, and Reliable PSU!
Great power supply — super quiet even under load and easy to install thanks to the fully modular cables. Build quality feels premium, and the 12V-2×6 cable makes it future-ready for new GPUs. No issues at all with my setup — really happy with this purchase

Handles My i9-12900KS + RTX 3090 Rig Without Breaking a Sweat
I’ve been building PCs for over a decade, and this is easily one of the most impressive power supplies I’ve used to date. I picked up the CORSAIR RM850e (2025 revision) as part of a rebuild centered around an Intel i9-12900KS and RTX 3090, and I’ve been nothing but impressed so far.Build Quality & Design:The unit itself is solid — heavy in a reassuring way, with a clean black finish and no unnecessary branding or flashy extras. The fully modular design is a huge plus, especially for managing cables in a tight mid-tower. I appreciated that the included cables were all black and flat — easy to route behind the motherboard tray, and they look clean without custom sleeving.Installation & Cabling:Installation was simple, and everything fit snugly. I’m using the standard 3x 8-pin for the 3090, but it’s nice knowing the 12V-2×6 cable is included in case I upgrade to a future PCIe 5.1 card later on. No loose connectors, no weird bends required — and unlike some modular PSUs I’ve dealt with, the ports on the unit are clearly labeled and firmly seated.Performance & Stability:Despite powering a very power-hungry setup, this PSU hasn’t flinched once. The 12900KS, even under boost/load, can be a voltage-hungry CPU, especially paired with the 3090 — but even during max load stress testing (Cinebench + Heaven benchmark running together), rails stayed completely stable, no crashes or brownouts, and no sign of power-related instability.Noise & Efficiency:Corsair nailed the noise levels. During idle and light gaming, the fan doesn’t even spin up. Even when it does under load, it’s so quiet it fades into the background of my other case fans. My case has good airflow, but the fan curve on this PSU is genuinely impressive. It’s also Cybenetics Gold rated, and the system draws power very efficiently — I’ve been monitoring wattage via a smart plug, and it lines up well with published benchmarks for power efficiency.Extras & Future-Proofing:ATX 3.1 & PCIe 5.1 ready105°C-rated Japanese capacitors (a must for long-term reliability)Modern Standby support works perfectly — fast wake times, zero sleep issues in Windows 11Final Thoughts:For anyone running a high-end system like mine — especially with power-hungry components like the i9-12900KS and RTX 3090 — this PSU offers peace of mind. No coil whine, no overheating, no second-guessing whether it’s enough. It’s quiet, efficient, and built with headroom for future GPUs thanks to the included 12V-2×6 cable and compliance with the latest standards.Highly recommend if you’re building or upgrading a performance-focused rig and want something that’ll last.

Perfect PSU for a Modern Gaming Rig
Works perfect with RTX 50-series graphics cards, I personally have a 5070Ti. It has sufficient power for most modern hardware in a typical rig. The cables were perfectly sized to accommodate my case, and it mounted just fine. The price point feels perfect for what you get, especially being modular, it makes my case look cleaner and less cluttered. The matte black finish matches my case and it looks like it belongs. I’d recommend a unit like this any day over anything else, unless you want the “x” model of course.

Works as it should
Works as it should and affordable when on sale. Easy to install and doesn’t trip the circuit breaker. Energy efficient and as fast as any other brand. Extra cables too. Corsair is a high quality brand

Silenciosa, revivió mi PC, buena opcion de cables, llegó muy rápido.

I recently purchased the Corsair PSU, and I must say that I was pleasantly surprised by its quality and performance. At first, I was a bit skeptical about spending money on a high-end PSU, but now I can see that it’s definitely worth it.The PSU itself is very well-built, with a solid construction and a sleek design. The modular cabling system is also a great feature, allowing me to remove any unnecessary cables and keep my system looking clean and organized.One of the things that really impressed me about this PSU is the variety of cables that come with it. I was able to find the perfect combination of cables to fit my specific needs, and the included cable management system made it easy to keep everything tidy.In terms of performance, the Corsair PSU has been rock-solid. I’ve been running my system with a variety of components, including a high-end GPU and CPU, and the PSU has handled everything with ease. The power delivery is smooth and consistent, and I’ve noticed a significant reduction in noise and heat compared to my old PSU.What’s even more impressive is that this PSU is very affordable, especially considering its high quality. I was expecting to pay a lot more for a PSU of this caliber, but Corsair has managed to offer it at a very competitive price. This makes it an excellent value for anyone looking for a high-quality PSU without breaking the bank.Overall, I’m extremely happy with my purchase and would highly recommend the Corsair PSU to anyone in the market for a new power supply. Its combination of high quality, excellent performance, and affordability make it a standout in its class, and I’m confident that it will serve me well for years to come. Whether you’re a gamer, a content creator, or just someone who wants a reliable PSU, the Corsair PSU is definitely worth considering.

Reliable power. Nice white cables. No need for extensions.