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White SFX power supply, compact rectangular unit with modular cable ports and a 90mm fan grille

Vetroo

Vetroo 850SFX 850W SFX power supply

SKU CH-255Z-C5X3A MPN 850SFX

Compact SFX unit delivers 850W with 80 Plus Gold efficiency, ATX 3.1 and PCIe 5.1 support, and a fully modular cable set

  • Max wattage850 W
  • Modular cablingFull Modular
  • Fan configuration90 mm
  • Main power connector20+4Pin
  • PCIe power connectors1 x (12+4) Pin, 2 x (6+2)
  • SATA power connectors3

Size 850W-SFX

Colors White

  • Fits mini-ITX and ATX cases with the included SFX-to-ATX bracket
  • Ready for PCIe 5.1 graphics cards with a 12+4 pin connector
  • Meets ATX 3.1 spec for modern platform compatibility
  • 80 Plus Gold certified for high efficiency across typical loads
  • Fully modular cables let you install only what the build needs

Compact 850 W SFX power supply

This Vetroo SFX unit delivers 850 W of continuous power in a 4.9 x 3.9 x 2.5 inch chassis. It carries 80 PLUS Gold certification and meets ATX 3.1 and PCIe 5.1 specifications. A 90 mm FDB fan provides cooling while keeping noise low. The fully modular cable set reduces clutter in small-form-factor builds.

Suited for high-wattage SFF and ATX conversions

Builders fitting a power-hungry GPU into a mini-ITX case or adapting the unit to a standard ATX chassis with the included bracket will find the connectors and clearance they need. Systems that require more than three SATA power connections or additional PCIe cables beyond the one 12+4 pin and two 6+2 pin plugs should look at a different unit.

Single 12VHPWR connector limits multi-GPU use

The power supply includes exactly one 12+4 pin PCIe 5.1 connector alongside two 6+2 pin PCIe connectors. Rigs that need two native 12VHPWR cables for dual modern graphics cards cannot be supported without adapters, which are not recommended for sustained high loads.

How it compares

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

Price $91.99
Cheaper than about 71% 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 nameVetroo
Model name850SFX
Product colorWhite
Product typeSFX
Performance
Frequency50-60 Hz
Ports & slots
PCIe power connectors1 x (12+4) Pin, 2 x (6+2)
SATA power connectors3
Power
Max wattage850 W
Modular cablingFull Modular
Main power connector20+4Pin
Efficiency certification80 PLUS GOLD Certified
Overvoltage protectionYes
Supply voltage100–240 V
AC input frequency50-60 Hz
Rated input current12A @ 115 V, 6A @ 230 V
Size & build
Product dimensions4.9 × 3.9 × 2.5 in
Product weight3.14 lb (1.42 kg)
In the box
Fans total quantity1
More details
Fan configuration90 mm

Other versions of this model

5 more in the same range

Questions about this item

Will the included SFX-to-ATX bracket let me mount this 850SFX unit in my older ATX case?

Yes, the supplied bracket adapts the SFX form factor to standard ATX mounting points so the 850W unit fits older full-size chassis.

How can I verify the 90mm FDB fan is running quietly after installation?

Listen for low-noise operation at idle; the fluid-dynamic bearing fan spins only when needed and stays near silent under light loads.

Does the box contain the 12+4 pin PCIe 5.1 cable and the three SATA power cables, or must I buy them separately?

All modular cables including the 12+4 pin PCIe 5.1 connector, two 6+2 pin PCIe cables and three SATA connectors are included in the package.

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