Product Reviews
- “Overall I am very happy with the performance and will award this with our editors choice award for rock stable performance and ultra silent fan.”
- “I cannot fault the Arctic Cooling Fusion 550R it seems to be priced a long side the competition, it looks good, if a little odd, with the fan mounted externally, though it is still inside the pc case so you wont lose any digits if you need to reach around the back of the pc whilst its powered up. All the power cables are sleeved which is another big plus point in my book as it keeps things looking neat and tidy.”
- “The Arctic Cooling Fusion 550R is a good and very efficient PSU, making it an ideal choice for people who would like to receive the best possible overall performance for their money. It is reasonably priced, efficient and very quiet. It certainly should be in your shortlist when shopping for a 450-600W unit.”
FAQ
- Do high wattage power supplies cost more to run?
- My brand new power supply doesn't work! Am I doing something wrong?
- Why should I buy a whole new PSU when I could just replace the noisy fan in my existing one?
- What is PFC (Power Factor Correction)?
- How do I know what size of wattage power supply I need?
- My new PSU came with a 24-pin connector but my motherboard needs 20 pins! Do I need an adaptor cable?
Top 10 PSUs (501-600W)
Arctic Cooling Fusion 550R 500W PSU
 | Fusion 550R 500W PSU [19 in stock]  (3 customer reviews) - Review | £56.51 (£66.40 inc. VAT) |
It's not Power Supply Unit, it's Payment Saving Unit!
Fusion 550R follows the default ATX-Form-Factor and therefore will fit into every ATX PC-Case. It fulfils the ATX 2.2 specifications and can offer a continuous power of 550 Watt. Equipped with two 6-pin- and 8-pin PCI-E connectors the PSU is ideal for powering a Crossfire or SLI setup.
Features
- Ultra quiet 80mm PWM fan with low noise impeller
- 550W output power, ATX 2.2
- 82-86% efficiency, 99% PFC
- 80mm ARCTIC F8 Pro fan
- Intelligent fan control (700 - 2,000 RPM)
- Controller for case ventilation
- Over-Power, Over-Voltage, Short Circuit protection, Over-Current Protection
- SLI and Crossfire compatible
High Efficiency = Less Power Loss = Quiet Cooling
With an efficiency of at least 82 to 86%, less heat is generated inside the PSU and as a result a single 80mm fan is enough to cool the PSU. The rubber-mounted fan rotates between 700 and 2000 RPM making it virtually silent. Additionally to this the PSU comes with two external fan-connectors giving the possibility to control the case fans based on the PSU load and temperature which lowers the noise level of the system to an absolute minimum.
Safe and stable PSU
With a PFC-factor of 99% and two separated 12-volt-rails (which support each other if necessary) the Arctic Fusion 550R is a very safe PSU. The overload, overvoltage and short-circuit protection safeguards the hardware as well as the user from damage.
PLEASE NOTE - Arctic Cooling measure noise levels in Sone (loudness) instead of dB (sound intensity). The loudness depends upon your ears response curves and tells you how noticeable a certain noise is.
Specifications
| +3.3V max load | 24 A |
| +5V max load | 24 A |
| +12V1 max load | 17 A |
| +12V2 max load | 17 A |
| Combined maximum output +3.3V / +5V | 130 W |
| -12V max load | 0.8A |
| +5VSB maximum standby current | 2.5 A |
| Dimensions | 160L x 150W x 86H mm (including fan) |
| Efficiency | 82 - 86% |
| PFC | Active 99% |
| Fan | 80mm ARCTIC F8 Pro |
| Fan Speed | 700 - 2,000 RPM by Intelligent Controller |
| Noise Level | 0.08 - 0.3 sone |
| Power Good Signal | 100 - 500 mS |
| Hold Up Time | >17 mS |
| MTBF | 100,000 hours at 25°C ambient temperature |
| Safety | CUL (Level 6) / CE / CB |
| Protection | OVP / OPP / SCP / OCP |
| Input Voltage | AC 200 V - 240V (Auto Range) |
| Input Current | 3.0A at 230 Vac |
| Input Frequency Range | 47 - 63 Hz |
| Power Output | 550 Watts |
| +12V (case fan) | 2 x 0.3A |
| Operating Temp | 0°C - 50°C |
| Storage Temp | -40°C - 80°C |
| Operating Humidity | 20% - 80% |
| Storage Humidity | 10% - 95% |
| Warranty | 36 months |
Customer Reviews
Fusion 550 (3)
Calum Grant - Posted: 1 Jul 2009 12:56 (9/10)
This thing is really quiet in spite of the smaller fan size. I had an Antec Earthwatts PSU before and I just couldn't believe how much difference this PSU makes. You can literally hear a pin drop. I can't hear this thing at all, even when the system is maxing out.
The placement of the fan is pretty smart since it absorbs all vibration, and makes the fan easy to clean should you ever need to. It also means that it's not sucking in the warm air from the CPU.
The build is good. My only criticism is that all of the SATA connectors are on one wire which could be a problem if you have a SATA DVD drive as well as SATA disks. Providing it stays reliable I am very happy with this.
RICHARD ANTHONY WEBLEY - Posted: 8 Dec 2009 19:24 (9/10)
The unit is very quiet. I have always been sceptical whenever a reviewer says that when they place their ear adjacent to the unit, that no sound appears to be emitted - well I'm eating my words not a peep - cool. Unfortunately the unit only contains 3 molex / ide type power connectors; I haven't deducted a star for this, as I guess this could be a hint for me to move into the 21st century in turns of replacing IDE devices with their SATA counterparts. The cables are braided which helps in terms of neatness. I have however deducted a star due to the fact that the unit does not have modular connectors although the case that I possess allows me to hide the excess.
Great unit.
Graham Berry - Posted: 2 Mar 2010 12:09 (7/10)
I cannot give a full review at the moment as I am still scratching my head as to how I am going to make some connections reach. I am using a Antec Mini p180 that is a smallish midi tower suitable for micro atx boards, however its unusual as the psu is mounted on the bottom and has to vent through front to back. This PSU was the only suitable one here, however cables, particularly main ATX and 4pin power are short, I cannot get the 4pin anywhere near the connector on the board and I am toying with the idea of splicing a section in to extend it by about 4 inches. I know this will void any warranty but I don't have much choice. All the PSUs these days have damn big fans on their base and I cannot use one of them. all my other PSUs have way longer cables, it is very quiet though. only time will tell.
Please search Google for a "PSU 4-pin Extension cable". This is better than splicing the PSU cables.
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