MPG A850G PCIE5 Power Supply Unit, UK Plug - 850W, 80 Plus Gold Certified, Fully Modular ATX 3.0, PCIe 5.0 GPU Support, Japanese 105°C Capacitors, 0% RPM Mode, Flat Cables - 10 Year Warranty

I was very relieved when i received this item. I had had to return a motherboard AND ram as i was building this computer so for a start, the fact that this works as intended is brilliant. It has a low-noise option which i make use of and a very good power efficiency, slightly above the 80plus rating, not that that matters a lot. The box is lovely, glossy printing and thick cardboard, which is a great bonus and helps it feel like a premium product. It has 2 cpu power cables and 3 PCIE ones which is more than a few others around this price point. The 12vHPWR, though not in use by me, has a yellow connector at both ends to make sure you plug it in fully and don't explode your lovely NVIDIA gpu. I will add that pcie 3.1 standard apparently doesn't have such issues, but as a 3.0 product it's a good way to alleviate it. Will rate 5 stars, no issues whatsoever unlike other products from ASUS AND CORSAIR AHEM... Anyway 5/5 does what it says on the tin and with great style, efficiency and price if you get it for £100-110

I got this PSU because MSI is a brand I trust. I’ve used MSI parts for around 20 years and they have never let me down. I find the build quality is always great and well packaged so the items get to you un-damaged. Pros Great cable quality and everything you need for your builds. Silent switch on the PSU so if your PC is idle and the PSU is cool the fan will switch off. Nice design on the side of the PSU so if you have a case where you can see the PSU then you are not just looking at a black box. A choice of 12v GPU cables. Cons The SATA power cables are a bit too long for my build so I did have to tuck them in a bit more than I would have liked. Over all this PSU has been a great addition to my all MSI build and will deliver the power I need to run my PC and give me some headroom if I want to add more drives, upgrade my GPU or over clock my system. At £109.99 I personally feel it’s an amazing price and with a 10 year warranty over the 7 year you get with the MAG PSU for an extra £10 I feel it’s a no brainer

MSI MPG A850G PCIE5 850W PSU Review: Future-Proof Power The Power Supply Unit (PSU) is often overlooked, but it is the foundational component of any stable, high-performance PC. The MSI MPG A850G PCIE5 aims squarely at the enthusiast market, offering a crucial blend of efficiency, reliability, and modern compatibility. For users building or upgrading a powerful system—such as the kind of high-end machine that hosts a demanding Windows environment like "Gengar"—this unit represents an intelligent long-term investment. Performance and Efficiency Rated at 850W and boasting an 80 Plus Gold Certification, the MPG A850G hits the sweet spot for the vast majority of gaming and workstation builds. 850W provides ample headroom for high-end CPUs paired with powerful contemporary GPUs, while the Gold rating ensures excellent efficiency, minimizing wasted heat and saving on electricity over time. The ATX 3.0 and PCIe 5.0 Advantage (Future-Proofing) This is the MPG A850G's defining feature. Modern, high-end graphics cards (especially the NVIDIA RTX 40-series and similar) are known for brief but intense power spikes, or transients. The ATX 3.0 standard is specifically designed to handle these massive power excursions without tripping the PSU's over-current protection. Crucially, the unit features a native PCIe 5.0 (12VHPWR) connector. This eliminates the need for bulky, multi-cable adapters that can complicate cable management and introduce potential failure points. Having a dedicated, single cable connection simplifies the build process significantly, making it ideal for clean installations inside high-power rigs. Build Quality and Longevity MSI has reinforced the A850G with high-quality components, most notably the use of Japanese 105°C Capacitors. These are industry-leading components known for their stability, endurance, and ability to operate reliably under high temperatures, which translates directly into the PSU's long lifespan. This commitment to quality is underscored by a stellar 10-Year Warranty. This decade-long coverage provides exceptional peace of mind, suggesting MSI is highly confident in the unit’s reliability for the entire lifespan of your PC and beyond. Aesthetics and Installation The PSU is fully modular, meaning you only connect the cables you need. This dramatically reduces clutter within the case, improving airflow and simplifying maintenance. The included flat cables further aid in the cable management process, making it easier to route them neatly behind the motherboard tray, even in smaller cases. Noise Profile The inclusion of a 0% RPM Mode is a major benefit for noise-conscious users. Under low to moderate load—such as when the PC is idling or performing light desktop tasks—the cooling fan stops spinning entirely, resulting in virtually silent operation. The fan only spins up when the system draw increases, ensuring maximum cooling when it's genuinely needed. This is a significant plus for anyone who values a quiet working environment. Final Verdict The MSI MPG A850G PCIE5 850W is an outstanding power supply that excels in both performance and forward-thinking design. Its native ATX 3.0 and PCIe 5.0 support make it a required component for anyone running a current-generation high-end GPU, while the 80 Plus Gold efficiency and 10-year warranty ensure it's built to last. It’s an essential, dependable heart for any modern, high-power system.

Right away, I was impressed by how well this PSU fits in my case. The matte black finish and flat modular cables make the setup look very tidy and professional. Being able to connect only the cables you actually need is a great touch—it keeps things neat, especially in smaller cases where space is limited. Cable management was super easy and didn’t feel like a chore at all. In terms of performance, it’s flawless. My PC boots fast and stays rock-solid under heavy load—no coil whine, no odd noises, nothing. The 80 Plus Gold certification really holds up, with cool temps and a fan that rarely spins up, even during gaming. The PCIe 5.0 connector is a nice addition too. I also appreciate the small details—like the included pouch for storing extra cables, which keeps everything organized and protected from scratches. Overall, this PSU is an excellent choice: quiet, efficient, powerful, and stylish. I’d absolutely recommend it to anyone building a modern mid- to high-end PC setup.

The MSI MPG A850G has been solid so far. It’s easy to work with thanks to the fully modular cables, and it comes with a small bag for the cables you don't use. There’s a 0-fan mode toggle next to the power switch. However, I use it with the fan on, but the PSU is still silent in my setup. It runs quietly under load, and I haven’t had any issues. The size is also pretty good, slightly smaller than my previous PSU. It has the same high-quality parts as a more expensive PSU, but for a way better price. Would recommend.