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XFX ProSeries 550W Core Edition Power Supply - 80 PLUS Bronze Certified

EasyRail™ Technology, perfect solution for hardcore gamers

Order Code: XFX-PS550

Manf.Code: P1-550S-XXB9

2 in stock Hurry while stocks last
£49.98 inc vat £41.65 ex vat

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XFX ProSeries 550W Core Edition Power Supply - 80 PLUS Bronze Certified

Order Code: XFX-PS550

£49.98 inc vat

Novatech customer reviews

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ProSeries 550W PSU

One Rail, One Setup

Unique, continuous EasyRail™ technology enables you to maximize available power and make set-up easy. Stack numerous power-hungry components without fear of crashing. It's also a perfect solution for hardcore gamers.

Key Features

The Wattage you see isn’t always the wattage you get.

Some brands tweak tests to get great wattage ratings, but in reality, they deliver much lower max wattages. Don’t be fooled by wattage tricks. Below are examples of how we guarantee our wattage.

Continuous Power

Wattage and heat go hand-in-hand. Other PSUs claim a certain wattage by using unrealistic testing environments like 25°C, but in real settings, they might reach much lower wattages. XFX PSUs guarantee the advertised wattage, even at well above standard operating conditions at 50°C.

Clean Power

Power drawn from your AC outlet is typically dirty with voltage spikes and fluctuations, which can harm vital PC components. XFX PSUs are designed to deliver tight DC voltage regulation with minimal AC ripple, giving you safer, cleaner power.

Efficient Power Use

80 Plus (Bronze, Silver, Gold & Platinum) certified means that this XFX PSU has an 88% to 95% power efficiency. Compare that to non-certified PSUs, which lose at least 20% of power drawn. With the XFX PSU, get every watt you pay for.

Extreme Heat Tested Capacitors

Internal PC operating temperature is around 35°C but the internal PSU temperature can be much higher. XFX uses all high-quality Japanese brand capacitors rated to withstand up to 105°C. While some competitors claim to use Japanese capacitors, they may only be rated for 85°C, which can shorten the usable life of a PSU.

Automatic Protection Sensors

All XFX PSUs come with automatic output protection systems to protect you and your computer. This includes Total Power Protection (OPP), Over Voltage Protection (OVP), Over Current Protection (OCP) and Short Circuit Protection (SCP)

Hybrid Fan Control - Conserves Power & Quieter

Hybrid mode, when activated, allows the PSU to operate silently until it reaches 30% load or 25°C. Then it switches to Quiet Mode (only 16dBA) until reaching 50% load which switches to Cooling Mode to cool the PSU appropriately.

Other Features

  • DC to DC Converter Design
  • Conductive Polymer Aluminum Solid Electrolytic Capacitors
  • Active Power Factor Correction [99% PF Typical]
  • High +12V Output
  • Ultra Ventilation [Grid Structure]
  • Multi-GPU Technologies Supported
  • All-in-One DC Cabling Design
  • Universal AC Input [Full Range]
  • 2 Year Limited Warranty

  • General

    Brand XFX
    Model P1-550S-UKB9
    Form Factor ATX12V 2.2/ EPS12V 2.91

    Input Voltage AC 100-240V
    Input Voltage Range AC 90 - 264 V
    Frequency Required 47 - 63 Hz
    Output Voltage +3.3V, +5V, ±12V

    24/20 Pin 1
    ATX 12V 1
    PCI-E 8 Pin 1
    PCI-E 6+2 Pin 1
    SATA 9
    Peripheral 6
    Floppy 2

    2 year standard warranty with all PSUs - simply register your PSU when purchased here to obtain a 5 year warranty. Register within 30 days of purchase, and provide proof of purchase for any warranty actions.

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    £49.98 inc vat £41.65 ex vat

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    2 Customer Reviews | Submit A Review

    We love having your feedback on all of your products, we do ask that you keep your reviews strictly about the product though. If you have any feedback about the service from the company please contact ourCustomer Servicesteam. Thank you.






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    This is basically a Seasonic PSU branded as XFX. Seasonic are one of the biggest names in PSUs and this model has rave reviews all over the internet that speak for themselves. I just want to add my own personal observations: 1. I ordered mine from Novatech and it came with an AMERICAN POWER CORD which is useless in this country. No biggie - most folks will have a standard IEC cable("Kettle Lead") kicking about somewhere but if you don't, chuck one in the shopping basket to avoid inconvenience later. 2. There really are a lot of cables - if you're fastidious about cable tidiness you won't be happy - go for a modular one. Likewise you'll either need a lot of space behind the PSU to cable tie up all the unused cables...or have a good place to route/cram them. As the other reviewer says though, its a small price to pay for what you get. This thing is reassuringly heavy and comes with the Seasonic name under the hood - recommended!

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    5/5 for what it is. Pros: It's a decent brand, and it works very well for my needs. (Core 2 Quad Q6600 & GeForce 560 ti) Cons: Obviously I can list numerous cons, that it won't work with the top power hungry graphics cards, it won't work with the medium power hungry graphics card in crossfire or SLI. It isn't modular, so the number of cables you have to find space for in your case seems insane. But you get what you pay for and for under £50, this is a bargain. One tip though, Novatech offer free delivery for over £50, so if you just want the PSU (currently £49.98), find the cheapest item on here and get free postage.