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Black non-modular ATX power supply unit with fixed cables visible

Raidmax

Raidmax RX850AESD 850 W power supply

SKU CH-JP56-H01Z3 MPN RX850AESD

850 W non-modular ATX 3.1 power supply with native 12VHPWR connector for RTX 50 series and AMD RX 7000/9000 graphics cards, SI-trusted OEM design with 80+ Gold efficiency and full protection suite

  • Max wattage850 W
  • Power efficiency> 90%
  • Modular cablingNon-Modular
  • Power factor correctionActive
  • Main power connector20+4 Pin
  • 12V railsSingle

Model ATX 80+ Gold 850W - RX-850AED

  • Trusted by system integrators for long-term stability
  • 850 W continuous output with > 90 % efficiency
  • ATX 3.1 and PCIe Gen 5 ready for RTX 50 and AMD RX 7900/7700
  • Native 12VHPWR plus 2 x 6+2-Pin PCIe and 6 SATA connectors
  • Non-modular straight-cable layout reduces connection points

ATX 3.1 PSU for modern GPUs

The Raidmax RX850AESD is an 850 W non-modular power supply built to the ATX 3.1 standard. It includes a native 12VHPWR connector for RTX 50 series and AMD RX 7900, 7700 and 9000 class graphics cards. The unit is an SI-trusted OEM design supplied in brown box packaging for system builders who value proven reliability over aesthetics.

Check clearance and cable routing

Verify that your case can accommodate a 5.4 inch deep unit with fixed cables already attached. Ensure your motherboard accepts a standard 20+4 pin main connector and that you have routing space for six SATA power plugs and two 6+2 pin PCIe connectors. The PSU operates on 100 to 240 V input with active PFC and single 12 V rail topology.

Replaces older non-ATX 3.0 units

This unit upgrades from power supplies that lack the 12VHPWR connector or ATX 3.1 compliance required by current high-end GPUs. The jump is worth it when building a new system around an RTX 50 series or AMD RX 7000 and 9000 series card, or when an existing 80+ Gold 850 W non-modular PSU shows age-related instability under transient loads.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $37.99
Cheaper than about 93% of the 10,869 comparable items (median $142.99).
Max wattage 850 W
Typical for this category: the median of 930 items is 850 W.

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Specifications

Product
Brand nameRAIDMAX
Product lineCobra
Model nameRX850AESD
Product colorBlack
Product typeATX 3.0 Compatible
Ports & slots
PCIe power connectors2 × 6+2-Pin
SATA power connectors6
Power
Max wattage850 W
Power efficiency> 90%
Modular cablingNon-Modular
Power factor correctionActive
Main power connector20+4 Pin
12V railsSingle
Overvoltage protectionYes
Overload protectionYes
Supply voltage100–240 V
Size & build
Product dimensions5.4 inx3.14 inx5.4 in

Other versions of this model

3 more in the same range

Questions about this item

Will the included 12VHPWR connector support an RTX 50 series graphics card without an adapter?

Yes, the unit ships with a native 12VHPWR connector that is ATX 3.1 and PCIe Gen 5 ready for RTX 50 series cards

How many SATA drives can I power from the fixed cables?

Six SATA power connectors are provided on the non-modular cable set

Does the 850 W rating represent continuous output at typical operating temperatures?

The supply delivers 850 W continuous power with 80+ Gold efficiency and full protection suite

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