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Compact black SFX power supply, 92mm fan, fully modular cables

Phanteks

Phanteks Revolt SFX PH-P850PSF_02 850W power supply

SKU CH-3RY4-4X4NE MPN PH-P850PSF_02

SFX 850 W unit with 80 PLUS Platinum efficiency, full modular cables and a 92 mm FDB fan that stops below 30 % load

  • Max wattage850 W
  • Modular cablingFull Modular
  • Fan configuration1 × 92 mm Fluid Dynamic Bearing (FDB) Fan
  • Main power connector24Pin
  • PCIe power connectors3 × 6+2-Pin
  • SATA power connectors3
  • 850 W output with 80 PLUS PLATINUM efficiency reduces waste heat
  • SFX design at 100 mm length fits compact chassis
  • 16-pin PCIe Gen 5.0 connector supports modern graphics cards
  • 92 mm FDB fan stops below 30 % load for silent operation
  • Full modular cabling includes custom flexible cables for tidy builds

Compact 850 W SFX power supply

This Phanteks Revolt SFX unit delivers 850 W in a 100 mm SFX chassis. It carries 80 PLUS Platinum certification and meets Intel ATX 3.0 with PCIe 5.0 support. A single 92 mm FDB fan runs a 0 RPM mode below 30 % load for silent operation. Fully modular cabling keeps small-form-factor builds tidy.

Builders fitting high-end GPUs into SFX cases

The 16-pin PCIe 5.0 connector and three 6+2-pin PCIe plugs serve modern graphics cards without adapters. Short, flexible cables route easily in tight layouts. Systems that need more than three SATA power headers or multiple Molex connectors will find the provided cable count limiting. Buyers using standard ATX cases gain no size advantage from the SFX form factor.

The 100 mm length decides case compatibility

At 100 mm long this supply fits SFX and SFX-L bays that accept that depth. Verify the case specification before purchase; longer SFX units will not install. The dimension is the single constraint that determines whether the Revolt SFX PH-P850PSF_02 fits the build.

How it compares

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

Price $163.99
Pricier than about 55% 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 namePhanteks
Product lineRevolt SFX
Model namePH-P850PSF_02
Product colorBlack
Product typeSFX
Ports & slots
PCIe power connectors3 × 6+2-Pin
SATA power connectors3
Output typeA, 5 V@20A, 3.3 V@20A, +5VSB@3A
Connection types1x 18Pin+10Pin MB 24P (310 mm)
1x 8pin CPU 4+4P (420 mm)
1x 8pin PCI-E 6+2P (250 mm)
1x 8pin PCI-E 6+2P/6+2P (250 mm SPLITTER)
1x 16pin PCI-E Gen 5.0 (250 mm)
1x 6pin 2SATA 90° (370 mm-250/120 mm)
1x 6pin 4SATA 90° (550 mm-250/100/100/100 mm)
1x 6pin 3SATA 90° + 1Molex 180° (550 mm-250/100/100/100 mm)
Power
Max wattage850 W
Modular cablingFull Modular
Main power connector24Pin
Efficiency certification80 PLUS PLATINUM Certified
Supply voltage100–240 V
AC input frequency50/60 Hz
Rated input current12A- 6A
Size & build
Product dimensions3.94 in × 5.9 in × 3.4 in
Product weight2.43 lb (1.1 kg)
Shipping weight2.12 kg
Package size241 × 187 × 108 mm
Compatibility
PSU length limit100 mm
More details
Fan configuration1 × 92 mm Fluid Dynamic Bearing (FDB) Fan
Mean time between failures>100,000 h

Questions about this item

What does the ATX 3.0 standard on this 850 W unit mean for peak power delivery?

The ATX 3.0 design lets the PSU handle short power excursions well above its 850 W rating, supporting modern GPUs that can spike to 2x or 3x their TDP for brief periods without tripping protection.

What clearance does the 100 mm SFX body need inside a compact case?

The housing is exactly 100 mm long, so the case must provide at least that depth plus room for the 92 mm fan and modular cable bend radius; verify the chassis spec lists SFX support before buying.

How do I connect the 16-pin PCIe 5.0 cable correctly, and what mistake do builders make?

Plug the single 16-pin cable directly into the GPU — do not use the 6+2-pin splitters for this connection — and seat it fully until the latch clicks; partial insertion is the most common cause of no-post or melting reports.

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