Raidmax
RAIDMAX Cobra ATX 3.1 Power Supply 850W
Bottom line: The RAIDMAX Cobra ATX 3.1 Power Supply 850W is a specs-and-price decision rather than a crowd-consensus one in the power supplies category, priced around $69.99 on Amazon as of 2026-10-06. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Backed by Raidmax's warranty and support channels
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
SpecPicks Verdict
SpecPicks scored RAIDMAX Cobra ATX 3.1 Power Supply 850W using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Raidmax's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- 850W Fully Modular Power Supply: High-capacity 850-watt output with fully modular cabling for maximum flexibility, efficient cable management, and a clutter-free setup for optimized airflow.
- Flat Cables: Not only eliminate cable clutter within the system, but takes up less space for better airflow.
- 80+ Gold Certified Efficiency: Achieves 90% efficiency under typical loads, minimizing excess heat and power waste while lowering electricity costs, ideal for power-hungry gaming builds and productivity workstations.
- PCIe Gen 5 Ready for Next-Gen GPUs: Equipped with ATX 3.1 PCIe Gen 5 support, this power supply unit is optimized for the latest graphics cards, providing stable and reliable power for high-performance gaming and content creation.
- Whisper-Quiet Cooling Fan: Features a low-noise 135mm fan with advanced thermal control, ensuring efficient heat dissipation and silent operation, even during intense gaming sessions.
- Enhanced Safety & Reliability: Built-in protections including OVP, UVP, OCP, SCP, and OTP safeguard your PC components from unexpected power surges and electrical faults, enhancing long-term reliability and durability.
Full Specifications
| Brand | Raidmax |
|---|---|
| Wattage | 850 watts |
| Fan Size | 13.5 centimeters |
| Model Name | RX-850AEM |
| Flat Cables | Not only eliminate cable clutter within the system, but takes up less space for better airflow. |
| Form Factor | ATX |
| Compatibility | PC |
| Connector Type | ATX |
| Cooling Method | Air |
| Number of Fans | 1 |
| Output Wattage | 850 watts |
| Item Dimensions | 5.7 x 5.9 x 3.15 inches |
| Compatible Devices | gaming Desktop pc |
| Power Supply Design | Full Modular |
| Warranty Description | 3 year manufacture and parts |
| Maximum Input Voltage | 240 volts_of_alternating_current |
| Minimum Input Voltage | 100 volts_of_alternating_current |
| Item dimensions L x W x H | 5.7 x 5.9 x 3.15 inches |
| System Bus Connector Type | ATX |
| Connector Type Used on Cable | ATX |
| Full listing title | RAIDMAX Cobra ATX 3.1 Power Supply 850W, Fully Modular 80+ Gold Certified Gaming PSU, PCIe Gen 5 Ready, High-Performance Power Supply for Gaming PCs, RoHS, Active PFC, Black Flat Cables |
Ready to buy?
RAIDMAX Cobra ATX 3.1 Power Supply 850W, Fully Modular 80+ Gold Certified Gaming PSU, PCIe Gen 5 Ready, High-Performance Power Supply for Gaming PCs, RoHS, Active PFC, Black Flat Cables is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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