Corsair HX1050 1050 Watt Power Supply Review

Professional Series power comes to us this time from Corsair in the form of its new HX1050. It is boasting over 1 kilowatt of solidly efficient power for the computer hardware enthusiast with a semi-modular cable system. We will see if this PSU is fit for enthusiasts and if it lives up to its efficiency statement.


Corsair is known in enthusiast circles as a premier supplier of high performance memory and has risen to become one of the most talked about power supply brands around. Corsair was able to establish such an amazing presence in such a short time through the use of quality OEM builders (Seasonic and CWT), rigorous standards, and excellent support. Since its entrance into the PSU field, it has established a number of lines of power supplies to address (and overlap) just about every market segment with its GS, CX, VX, TX, HX, and AX lines. Today, Corsair brings us the HX1050 (CMPSU-1050HX), a replacement for one of its old standby units from the HX line, the HX1000W. This new unit is once more produced in conjunction with CWT.

Channel Well Technology (CWT) was founded and began manufacturing power supplies in 1993. Since 1993 Channel Well Technology products have shown up under various guises including Antec, Xclio, 2theMax, CWT, Thermaltake, Xigmatek, and Corsair. While most familiar to our US users from when it used to provide OEM services for Antec, CWT is one of the more complete OEM manufacturers as it has a fairly high level of vertical integration providing transformers all the way up to its well designed SMPS.

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Fresh Wind in the Sails

The Corsair HX1050 is the newest power supply from Corsair to come across our test bench that replaces an old standby unit from Corsair. This units predecessor, the HX1000W, originally debuted way back at the beginning of 2008 and, like much of Corsair's lineup launched in that time frame, has gone the way of sea biscuits on a long voyage over the last 3 years. Today, Corsair has finally brought to us a replacement for that now sea-tossed and battered ship and with the launching of the new HX1050, Corsair turns its sextant once more towards the skies. Before moving on, let’s first see what kind of ship we will be sailing today:

Corsair Professional Series power supplies are design for enthusiasts and gamers who demand high performance, high efficiency, the flexibility of modular cables, and unflinching reliability. Designed and engineered using cutting-edge technology, each Corsair Professional Series power supply is built to the highest quality standards, and delivers the features and performance that technology enthusiast’s demand.

Corsair Professional Series power supplies are built using Industrial Grade electrical components, ensuring the stable, clean and reliable voltages that are essential for high-end gaming PCs and workstations. Professional Series PSUs are rigorously tested at 100% load and an ambient temperature of 50°C, guaranteeing stability and reliability even in the most demanding, multi-core, multi-graphics card systems.

The Corsair Professional Series HX1050 PSU utilizes advanced DC-to-DC circuitry, and exceeds the requirement for 80 PLUS® Silver certification standards, for up to 88% energy-efficiency. This reduces wasted energy, reducing energy bills, and lowers the amount of excess heat generated, allowing the cooling fan to spin more slowly and quietly. Corsair Professional Series power supplies are built using Industrial Grade electrical components, ensuring the stable, clean and reliable voltages that are essential for high-end gaming PCs and workstations.

Corsair Professional Series power supplies boast an innovative semi-modular cabling configuration that uses low-profile, flat modular cables, which reduce air friction to help maximize airflow through the computer chassis. The modular design also simplifies installation as it allows unprecedented flexibility in utilizing only those cables which are needed.

The Corsair Professional Series is backed by an industry-leading 7-year warranty and comprehensive customer support.

Moving on let’s see what we can expect when a user purchases the Corsair HX1050 power supply in retail in terms of documentation, accessories, cable count, rail layout, output characteristics, and general build quality.