Ultra X4 ULT-HA850X 850W

Overview

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Browse 14 expert reviews so far

Excellent:

0
Good:

1
Average:

1
Bad:

0

Pros:

Fully modular design, Beautiful fit and finish, Nice accessory set, Relatively compact, Stable, Pretty quiet, Efficient, Dedicated fan cable, Lifetime warranty
Tested out well in terms of regulation, ripple, and efficiency, Very quiet, Fully modular, Attractive, no nonsense appearance, Cables are well finished, plentiful, and long enough for most cases, Nice bundle of accessories
Excellent performance, Warranty, Modular Cables, Quiet

Cons:

Expensive, Stiff cables, Louder and hotter than expected
MTBF temperature: 25C, maximum ambient operating temperature: 40C, MSRP of $250 (US), Limited availability, I killed it

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Last revision on June 11, 2010

Reviewers Liked

Fully modular design, Beautiful fit and finish, Nice accessory set, Relatively compact, Stable, Pretty quiet, Efficient, Dedicated fan cable, Lifetime warranty
Tested out well in terms of regulation, ripple, and efficiency, Very quiet, Fully modular, Attractive, no nonsense appearance, Cables are well finished, plentiful, and long enough for most cases, Nice bundle of accessories
Excellent performance, Warranty, Modular Cables, Quiet

Reviewers Didn't Like

Expensive, Stiff cables, Louder and hotter than expected
MTBF temperature: 25C, maximum ambient operating temperature: 40C, MSRP of $250 (US), Limited availability, I killed it
If we were to be picky, the X3 looked more refined than the X4

Expert reviews and ratings

Ultra didn't include any of the fancy lighting or windows that I have seen in some of their past power supplies. Instead they focused on quality not flashy gimmicks. The modular design was great too work with. However, my only complaint was the...

By LanOC Reviews on February 11, 2010

With the X4 850 W power supply, Ultra has raised the bar for mid range power supplies. The X4 is loaded with features you usually find in much more expensive units and often over the 1000W mark while keeping the price from climbing to far out of a...

By Club Overclocker on November 06, 2009

The Ultra X4 ULT-HA850X has a not-very-stable +12V power rail. Its real output power is some 50 watts below the specified one and its compatibility with UPSes is poor. On the other hand, this PSU differs from the competition with its very quiet...

By X-bit Labs on June 11, 2010

We tested the Ultra X4 850W on an 8-core Intel Skulltrail rig, complete with multiple drives and a pair of AMD’s recently released ATI Radeon HD 5970 cards. Despite peak power consumption...

By ComputerPowerUser on January 01, 2010

The Ultra Products X4 850W power supply has a lot to recommend it. Its fully modular design is very unique and will be a boon to users with tight cases who like to have neat, tidy installs. The cable assortment is complete and provides the user with...

By TweakNews on December 28, 2009

As prices for quality power supplies fall, products that were once out of reach are now accessible to consumers who are on a budget. With the ever-increasing power demands of the most modern components, 850W PSUs have become one of the “sweet spots”...

By Hardware Canucks on December 23, 2009

The Ultra Products X4 850W PSU is a solid piece of kit in a nice tidy package. This PSU comes equipped with one large 60A +12v rail and supports 6 PCIe devices - 3x 6-pin and 3x 8-pin. It is completely modular and features a nice large fan that...

By BCCHardware on November 09, 2009

Like the popular Ultra X3 modular line of power supplies, the X4 line will is use to please. With wattage's ranging from 500 to 1600, you are sure to get the PSU that best suits your needs. These PSUs are 100% modular, come...

By 3dGameMan on November 03, 2009

The Ultra X4 600 and 850 units are very good looking power supplies. You can never go wrong with a modular power supply. The arrangement makes for better air flow within the case and allows for better cable management. When comes to the modular cables...

By Pro-Clockers on October 20, 2009

While the unit did not survive the review, I won't hold that against it. As the new test setup gets refined the mortality rate will hopefully drop, while the useful information provided in these reviews will hopefully rise. Before its death, the...

By Bigbruin on October 20, 2009

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