Ultra LSP550 550-Watt Power Supply - ATX, SATA-Ready, SLI-Ready, 135mm Fan

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had to return this unit, was bad right out of the box

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Works Great but little noisy.

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when I recived this power supply I knew it was going to be a good one when I saw how it was made and the great care & attention that was given in each of the separated wrapped cables. They simply can't get tangled and there is a cable for every type of hook-up and some left over. Great Product!

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This was the easiest PSU I have ever installed. The unit is very well built and the wrapped cables reduce the clutter and improve the air flow.

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I received my Ultra LSP550 550-Watt Power Supply as a direct replacement for an older Ultra Xfinity 500-Watt Supply that died on me. Of course it was covered by their Life Time Warranty. Ultra obtained an RMA through this site for me, issued a return UPS shipping label and all I had to do was drop it off or call for UPS to pick it up. I had the new 550 Watt PWS two days after my old unit arrived at Ultra. The LSP 550 is much nicer than the 500 watt unit it replaced. It is quiter and cooler with the big 135 mm fan. It has all of the connections I need and the mesh coated wiring is great for wire management and ventilation. Good stable power! Thanks for a wonderful warranty experience. Two great companies that care about their customers.

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Received the unit, plugged it in, but it never worked. Had to pay shipping to return and buy a similar PS at futureshop.

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i installed this product in my hp p6110y 2.6 ghz dual core 6 gig ddr2 memory running an nvidia geforce 9500 gt 1 gig video card with a noticeable increase in functionality over the factory installed 250w power supply. I would highly recommend this product to anyone looking for a power supply that performs well at a price that doesn't break the bank

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Works great & no Problems

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Great buy

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This power supply was very easy to install. All the wires are wrapped and bundled very nicely. More than enough power to run a quality gaming card

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Works as expected. No problems for more than 5 months.

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Good Value Preforms great

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Out with the old, in with the new. Easy as that!

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This is the quietest power supply that I have ever use. It has a large fan and lots of ventilation holes. It is a good deal. I would buy another one.

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I haven't had time to study it over time as it is in a customer's computer but it's powering a pretty high end graphics card and staying at a pretty decent 12V voltage. It looks great, works great, and is pretty quiet so I'd suggest this to anyone who wants a cheap power supply but not THE cheapest one, as those usually break or give crappy voltages.

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This is a great power Supply, I needed one with a 24 pin mother board plug and I wanted to have 500 or more watts this was the right price and had all the right plugs.It is great,I tested it and found no problems-thanks again

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This power supply is very well built, very quiet and a terrific value!

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Even better warranty

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This power supply worked great with the MA785GM-US2H Motherboard from here for my needs (had enough connectors of the right type). Fit in an HP Pavilion a6650f case. The lifetime warranty is also a plus.

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after my 5 year old 440w noname psu died, and left me without a computer, i saw this deal. one of the best sales in a while. for the price you get a rock solid, powerful and reliable psu. it has plenty of ports and for the price it cant be beat. also comes with ultra's trusted lifetime warranty.

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The power supply works alright and does what is needed. My only complaint is that the power readout (according to the mainboard) is -7.5v for the -12v rail. Other than that, it's quiet and works.

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Needed to replace noisy power supply (fan noise) - this one is absolutely silent and a great relief!

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Upgraded my choice due to price drop on the next higher unit, more power at the same price. Very happy with the ease of installation and initial operation. Would recommend others buy Ultra Power Supply products. Found the vidieo very helpful.

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this is obviously a quality built power supply. very quiet and the sleeved cables make a neater case interior. As part of a bare bones kit I was very satisfied.

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I just installed a video card and needed a bigger PSU. This seemed to be the best bang for the buck. Works great is and is very quiet.