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Black rectangular ATX power supply with 14cm RGB fan and honeycomb vent grille

sakose

sakose RGB-850 850W fully modular ATX power supply

SKU CH-EW4Z-KFX2P MPN RGB-850

Fully modular 850 W ATX unit with 80+ Gold efficiency, a 14 cm RGB fan and single +12 V rail

  • Max wattage850 W
  • Modular cablingFull Modular
  • Fan configuration1
  • Fan LEDRGB
  • Power factor correctionActive
  • Main power connector20+4Pin
  • 80 PLUS Gold certification delivers up to 90% efficiency at typical loads
  • Fully modular cabling keeps builds tidy and improves airflow inside the case
  • Single +12V rail provides stable 850 W output for high-end graphics cards
  • 14 cm RGB fan with intelligent speed control runs quietly while adding addressable lighting
  • Honeycomb ventilation plus OPP, OVP, UVP, SCP and OCP protections safeguard components

Power and Efficiency

The sakose RGB-850 is a fully modular ATX power supply rated at 850 W with 80 PLUS Gold certification. It accepts 100 to 240 V input at 47 to 63 Hz and delivers up to 90 % efficiency under typical loads. A single +12 V rail provides stable output for demanding components.

Capacity and Headroom

The unit supplies two 6+2-pin PCIe connectors and eight SATA power connectors for drives and peripherals. Its 170 mm length fits standard ATX cases with bottom-mounted PSU positions, while cables reach at least 500 mm for clean routing. Protection circuits cover over-voltage, under-voltage, over-power, short-circuit and over-current events.

Build Integration

A 14 cm RGB fan with intelligent speed control moves air through a honeycomb ventilation grille. Addressable lighting offers multiple colour modes for visual coordination. The fully modular design lets you attach only the cables your build requires, reducing clutter and improving airflow inside the chassis.

How it compares

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

Price $152.99
Typical for this category: the median of 10,869 items is $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 nameGameMax
Model nameRGB-850 Rainbow
Product typeATX12 V
Ports & slots
PCIe power connectors2 × 6+2-Pin
SATA power connectors8
Output type+3.3 V@20A, +5 V@20A, +12 V@70A
Connection types1 x MB 24(20+4) Pin 1 x CPU 8(4+4) Pin 2 x PCIe 8(6+2) Pin 8 x SATA 3 × 4 Pin Peripheral 1 x Floppy
Power
Max wattage850 W
Modular cablingFull Modular
Power factor correctionActive
Main power connector20+4Pin
12V railsSingle
Efficiency certification80 PLUS GOLD Certified
Overvoltage protectionYes
Overload protectionYes
Built-in protectionOPP/OVP/UVP/SCP/OCP electrical protection included.
Supply voltage100–240 V
AC input frequency47–63 Hz
Rated input current12–6 A
Size & build
Product dimensions3.38 in × 5.91 in × 6.69 in
Compatibility
PSU length limit170 mm
More details
Fan configuration1
Fan LEDRGB

Questions about this item

Will the 850 W unit and its 20+4-pin main connector work with my older ATX12V 2.3 motherboard?

Yes, the supply is compatible with both ATX12V 2.3 and 2.4, and the 20+4-pin connector fits legacy 20-pin or modern 24-pin sockets.

How can I verify the 14 cm RGB fan and 80+ Gold efficiency are operating correctly after installation?

The fan spins under intelligent speed control and lights up in addressable RGB modes; 80+ Gold means it should run at 90%+ efficiency at typical loads.

Which cables come pre-attached in the fully modular box and what must I source separately?

The box includes the modular PSU, a full set of detachable cables — 20+4-pin, two 6+2-pin PCIe, and eight SATA — so no extra power cables are needed for a standard build.

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