XFX PRO 850 W Power Supply Review

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Introduction

XFX is releasing their PRO series of power supplies, with single +12 V rail, DC-DC secondary design, and 80 Plus Bronze certification. So far three models were released: 650 W, 750 W, and 850 W. We have already tested the 650 W and the 750 W models, and both proved to have terrific cost/benefit ratios. Let’s see if the 850 W model follows the same path.

Like other power supplies from XFX, members of the PRO series are manufactured by Seasonic.

XFX PRO 850 W power supplyFigure 1: XFX PRO 850 W power supply

XFX PRO 850 W power supplyFigure 2: XFX PRO 850 W power supply

The PRO 850 W is 7.1” (180 mm) deep, with a 135 mm dual ball bearing fan (ADDA ADN512UB-A90) on its bottom part.

The new XFX PRO 850 W doesn’t have a modular cabling system. All cables are protected with nylon sleeves. The power supply comes with the following cables:

  • Main motherboard cable with a 20/24-pin connector, 22.8” (58 cm) long
  • One cable with two ATX12V connectors that together form an EPS12V connector, 23.6” (60 cm) long
  • Two cables with one six-pin connector for video cards each, 22.8” (58 cm) long
  • Two cables with one six/eight-pin connector for video cards each, 22.8” (58 cm) long
  • Two cables with four SATA power connectors each, 15” (38 cm) to the first connector, 5.9” (15 cm) between connectors
  • One cable with three SATA power connectors, 15” (38 cm) to the first connector, 5.9” (15 cm) between connectors
  • One cable with four standard peripheral power connectors, 15” (38 cm) to the first connector, 5.9” (15 cm) between connectors
  • One cable with three standard peripheral power connectors and one floppy disk drive power connector, 15” (38 cm) to the first connector, 5.9” (15 cm) between connectors

All wires are 18 AWG, which is the minimum recommended gauge.

The only difference in cable configuration compared to the configuration used on the 650 W and 750 W models was the addition on one cable with three SATA connectors, making this unit to have a total of 11 SATA power connectors, which is great. We think the manufacturer could have added two more video card power connectors in order to allow the installation of three high-end video cards without the need for adapters.

XFX PRO 850 W power supplyFigure 3: Cables

Let’s now take an in-depth look inside this power supply.

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Author: Gabriel Torres

Gabriel Torres is a Brazilian best-selling ICT expert, with 24 books published. He started his online career in 1996, when he launched Clube do Hardware, which is one of the oldest and largest websites about technology in Brazil. He created Hardware Secrets in 1999 to expand his knowledge outside his home country.

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