Amazon is offering a significant discount on the 2025 model of Corsair's RM850e power supply unit as part of its Prime Day deals. The 850W PSU is currently priced at £76, a 34% reduction from its usual retail price of £115, marking its cheapest price point to date.
This 850W unit is suitable for powering high-end PCs, meeting or exceeding the minimum wattage recommendations for a range of current and last-generation GPUs, including Nvidia's RTX 4090 and AMD's RX 7900 XTX. The additional power headroom can also help the PSU operate more efficiently, potentially reducing heat and fan noise during demanding tasks.
The RM850e is compliant with the latest ATX 3.1 standards and the PCIe 5.1 platform. It includes a 12V-2x6 connector, enabling direct support for modern high-power Nvidia 50-series GPUs without the need for additional adapters. The power supply also features a fully modular design, allowing users to attach only the necessary cables to reduce clutter within their PC case. Its Cybenetics Gold rating indicates a reliable and efficient operation, a standard Corsair has adopted for its stringent efficiency metrics.
Designed with a relatively compact form factor, the RM850e is expected to fit into most ATX cases, including smaller mid-towers. Its fan is engineered to remain inactive at low and medium loads, ensuring quiet operation during general use. The unit incorporates a comprehensive suite of safeguards against common power faults, such as over-voltage, under-voltage, over-current, over-power, short-circuit, and over-temperature issues, and is backed by a substantial warranty.
This discounted price positions the RM850e as a strong value proposition, offering modern connectivity and ATX 3.1 support at a lower cost than many comparable units. It presents an opportunity for builders and upgraders looking to future-proof their systems, particularly those planning to install new, power-hungry graphics cards.