Raidmax
Raidmax Cobra 850W ATX 3.1 power supply
A fully modular 850 W ATX 3.1 power supply with 80+ Gold efficiency, PCIe Gen 5 support, flat cables and a 135 mm fan
- ColorBlack
- TypeATX 12V v3.1
- Maximum Power850 W
- Fans1 x 120 mm
- PFCActive
- Main Connector20+4 Pin
Options ATX 80+ Gold 850W Full-Modular
- ATX 80+ Gold 650W
- ATX 80+ Gold 750W
- ATX 80+ Gold 850W Full-Modular
- ATX 80+ Gold 850W - RX-850AED
- 850 W output powers demanding gaming builds
- Fully modular flat cables reduce clutter and improve airflow
- 80 PLUS Gold efficiency reaches 90% under typical loads
- ATX 3.1 design supports PCIe Gen 5 graphics cards
- 135 mm fan with thermal control keeps operation quiet
Power supply for gaming PCs
The Raidmax Cobra delivers 850 W through an ATX 3.1 design with fully modular cabling. It targets builders who need strong output for modern graphics cards and clean cable routing.
ATX 3.1 PCIe Gen 5 support
This unit meets the ATX 3.1 specification and is ready for PCIe Gen 5 graphics cards. The single +12 V rail and 80 PLUS Gold rating above 90 % efficiency are the key figures that decide compatibility.
Fully modular flat cables simplify installation
All cables detach, and the flat black design reduces clutter for better airflow. The 135 mm fan runs quietly under thermal control. Ensure the 20+4 pin main connector and the two 6+2 pin PCIe plugs match your motherboard and GPU requirements.
Highlights
- 850 W output powers demanding gaming builds
- Fully modular flat cables reduce clutter and improve airflow
- 80 PLUS Gold efficiency reaches 90% under typical loads
- ATX 3.1 design supports PCIe Gen 5 graphics cards
- 135 mm fan with thermal control keeps operation quiet
Specifications
| Brand | RAIDMAX |
|---|---|
| Series | Cobra |
| Model | 850W |
| Color | Black |
| Type | ATX 12V v3.1 |
| Maximum Power | 850 W |
| Fans | 1 x 120 mm |
| PFC | Active |
| Main Connector | 20+4 Pin |
| +12V Rails | Single |
| PCI-Express Connector | 2 x 6+2 Pin |
| SATA Power Connector | 6 |
| Modular | Full Modular |
| Efficiency | > 90% |
| Energy-Efficient | 80 PLUS GOLD Certified |
| Over Voltage Protection | Yes |
| Overload Protection | Yes |
| Protection | OCP/UVP/OVP/SCP/OPP/OTP |
| Input Voltage | 100 - 240 V |
| Input Frequency Range | 50/60 Hz |
| Input Current | 8A @ 115V, 4A @ 230V |
| MTBF | >100,000 Hours |
| Cable Spec | Flat Cable |
| Power Rating | 850W |
| Features | Gen5.1 Real ATX3.1 PSU Included 12VHPWR PCIe connector for high-end systems with the up-to-date GPU. |
| Frequency Range | 50/60 Hz |
| +3.3V Max. Current | 18A |
| +5V Max. Current | 18A |
| +12V1 Max. Current | 54A |
| 12V Power Connector | 12VHPWR |
| Fans Total Quantity | 1 |
| Top Fans Size | 135mm |
| Top Fans Bearing Type | Fluid Dynamic |
| Short Circuit Protection | Yes |
| Under Voltage Protection | Yes |
| Over Current Protection | Yes |
| Over Power Protection | Yes |
| Over Temperature Protection | Yes |
Other versions of this model
3 more in the same range
Same family, different memory, cooler or clock — compare before you commit.
Questions about this item
Will the 120 mm fan fit in a standard ATX case without clearance issues?
The unit uses a single 120 mm fan in a standard ATX 3.1 form factor, so it fits any case designed for ATX power supplies.
Does the fully modular design include the PCIe 6+2 pin cables needed for a modern graphics card?
Yes, the box supplies two PCIe 6+2 pin cables that you plug in only if your GPU requires them.
Can this PSU run on a 100 V circuit as well as 240 V without a voltage switch?
Active PFC handles the full 100-240 V range automatically at 50 or 60 Hz.
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