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 power supplies
Kamariki 4 Ultra-Quiet Plug-in Power Supplies
Scythe's Kamariki 4 power supplies feature a fully modular cable connectivity system called "Plug-in". By having detachable power cables, you can remove the cables you don't need and avoid cluttering up the inside of your case with unnecessary wiring. This makes working on your PC much easier, as well as improving airflow. The Kamariki power supplies are available in four different wattages from 450W to 750W. Each PSU uses the famous Scythe Kaze Jyu 100 mm fan to ensure efficient cooling.
It is also possible to connect up to three case fans to the Intelligent Fan Cable Connector which automatically adjusts the fan speed of those fans according to the loading of the power supply. The case fans can be connected directly or via the supplied modular fan cable. In order to satisfy customer demands as well as the green IT movement, the Scythe Kamariki 4 PSU series fully conform to the 80Plus standard at 20/50/100% system load.
Image showing noise levels at a given load
Features
- Exceptionally quiet
- Modular design
- Specially designed fan grill
- Built in automatic fan controller based on PSU load
- Cooled using a Scythe Kaze Jyu 100 mm fan
Specifications
| 450W Modular | 550W Modular | 750W Modular | |
|---|---|---|---|
| Model Number | KMRK4-P-450A | KMRK4-P-550A | KMRK4-P-750A |
| +3.3V max load | 25 A | 28 A | |
| +5V max load | 25 A | 20 A | |
| +12V1 max load | 18 A | 25 A | 20 A |
| +12V2 max load | 18 A | 25 A | 20 A |
| +12V3 max load | - | 20 A | |
| +12V4 max load | - | 20 A | |
| +12V Combined | 400W | 450W | 650 W |
| Combined maximum output +3.3V / +5V | 130 W | 150 W | 180 W |
| -12V max load | 0.3 A | 0.8 A | |
| +5VSB maximum standby current | 2.5 A | 3.0 A | |
| Dimensions | 160L x 150W x 86H mm (including fan) | ||
| Cable Length | 45 - 55 cm Mesh-Type cables | ||
| Efficiency | 84% - 80PLUS Certified | ||
| Noise Level | 8.4 - 20.7 dBA | 8.4 - 23.0 dBA | 9.2 - 25.6 dBA |
| Fan | Scythe Kaze Jyu 100 mm, 1350 RPM | Scythe Kaze Jyu 100 mm, 1500 RPM | Scythe Kaze Jyu 100 mm, 1750 RPM |
| Safety | CE, TUV, CB, FCC | ||
| Protection | Over Current, Over Voltage, Short Circuit | ||
| Number of hard drive connectors | 6 | 8 | |
| SATA connectors | 6 | 8 | 10 |
| Number of floppy drive connectors | 2 | ||
| Fan Connectors | 3 | ||
| ATX12V/ESP12V (4/8-pin) support | Yes | ||
| 20/24-pin ATX connector | Yes | ||
| PCI-E support | One 6/8-pin | Two 6/8-pin | Four 6/8-pin |
| ATX12V version | 2.3, EPS 12V | ||
| Warranty | 24 months | ||
Customer Reviews
550W Modular (3)
John Niven - Posted: 22 Jul 2009 11:36
(10/10)
I purchased this for its noise-level, with its modular power-cabling as a secondary issue. When it arrived I found a third issue - it's beautiful! In use it's whisper quiet (the AMD-supplied CPU fan makes more noise), and I wouldn't go back to a traditional PSU. The modular cabling is superb, and another reason I'd stick with this PSU. My case is opaque, but if any PSU made me buy a windowed-case it would be this one - it's so shiny!
Anonymous - Posted: 26 Jan 2010 10:07 (10/10)
I had emailed Andy (QuietPC) for a recommendation for a quiet PSU to go in my new machine intended for use in my studio. This Kamariki was his suggestion and what a difference it made. I already had a pretty quiet PSU, but it was still the noisiest part of the system. This Kamariki is so quiet, it may as well not be there. Superb product and the modular cabling has considerably tidied up the inside of the case.
Only one problem... I'm now going to have to spend some more hard-earned on silencing the hard disks I couldn't hear before I put this in ;-)
Geraint Edwards - Posted: 25 Nov 2009 19:03 (10/10)
I agree with John Niven - whisper quiet, excellent selection of modular cables (and very shiny!) All I can hear now is the occasional hard disk access and the AMD stock fan on my phenom II (which isn't too bad).
FYI - from the packaging noise levels are 8.4dbA up to c. 250W load then pretty much linear increase to 23 dbA at the full 550W.
See also:
Ultra-Quiet PSUs 300W to 500W
Ultra-Quiet PSUs 501W to 600W
Ultra-Quiet PSUs 601W to 1000W
