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Corsair HXi Series, HX1000i, 1000 Watt (1000W), Fully Modular Power Supply, 80+ Platinum Certified
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- High Performance Design
- 80 PLUS Platinum certified efficiency
- Flat black, low-profile modular cables
- 1000 watts of reliable, continuous power delivery
- ZeroRPM mode for fanless operation at low loads and outstanding noise reduction
- Ten year warranty: Your guarantee of reliable operation that will last across several system builds
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From the manufacturer
High power and incredible efficiency in our quietest PSUs yet
HXi Series power supplies give you extremely tight voltage control, virtually silent operation, and a fully modular cable set. With all Japanese 105°C capacitors, they’re a great choice for high performance PCs where reliability is essential. 80 Plus Platinum efficiency reduces operating cost and excess heat, and together with Zero RPM Fan Mode technology, gives you virtually silent operation.
With Corsair Link Digital support, you can monitor power supply performance, toggle single rail or multi rail mode, and control fan speed directly from your desktop. And, the fully modular, low profile cable set makes builds and upgrades easy, with clean, great-looking results.
Quiet, efficient operation
80 PLUS Platinum efficiency and Zero RPM Fan Mode mean that at low to medium loads, the fan doesn’t spin at all. And when you do push the HXi hard, the thermally controlled fan spins only as fast as it needs to.
But that’s not all. It’s quieter than most PSUs when the fan’s not spinning, too. The HXi is built with capacitors and other internal components specially selected to reduce coil whine and other electronic noise.
Corsair Link Digital for advanced monitoring and control
Connect the included cable to a motherboard USB header and download the free Corsair Link Dashboard application for Windows and you can monitor performance and efficiency, toggle single rail or multi rail mode, and control fan speed directly from your desktop.
The fully modular, low-profile cable set allows for quick and easy installation and great-looking builds. The fan self-test switch lets you quickly confirm operation before you even attach cables to your motherboard.
- 4th generation Intel Core processor Ready (Intel Haswell and Z87 motherboards)
- ATX12V v2.4 and EPS 2.92 standards and is backward compatible with ATX12V 2.2, 2.31 and ATX12V 2.01 systems
- Corsair Link Integration for monitoring performance and adjustment of fan speed and multi-rail/single rail mode.
- 80 Plus Platinum efficiency, delivering 92% energy efficiency at real world load conditions.
- ZeroRPM mode for fanless operation at low loads and outstanding noise reduction.
- 140mm thermally controlled fluid dynamic bearing fan spins up as needed.
- Fully Modular low profile cables for easy installation, less clutter, and helps maximize airflow through your computer’s chassis.
- Engineered to meet maximum power output at a server-grade 50C temperature rating.
- Fan self-test switch to determine fan functionality even before installation.
- Over-voltage protection, under-voltage protection, and short circuit protection, over power protection, over temperature protection provide maximum safety to your critical system components.
- Safety and Agency Approvals: FCC, ICES, CE, UL / CUL, CSA, C-Tick/RCM, TUV, CB, CU, KC Mark, RoHS, WEEE, RoHS (China), REACH.
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HXi Series power supplies give you extremely tight voltage control, virtually silent operation, and a fully modular cable set. With all Japanese 105 Degree capacitors, they're a great choice for high performance PCs where reliability is essential. 80 PLUS Platinum efficiency reduces operating cost and excess heat, and together with Zero RPM Fan Mode technology, gives you virtually silent operation. With Corsair Link Digital support, you can monitor power supply performance, toggle single rail or multi rail mode, and control fan speed directly from your desktop. And, the fully modular, low profile cable set makes builds and upgrades easy, with clean, great-looking results.
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That's the only thing that doesn't make this 5 stars. The product is not depicted correctly on the site, and would have changed my buying decision.
There are basically three reasons to go for a platinum PSU. First the efficiency, however this would be my last reason in practice. Then the features, like modularity, and most importantly the build quality, which affects the warranty, and of course the power quality your motherboard and other components receive. The last one is very important if you want to keep a stable working PC for a long time.
Going into details, the efficiency of 80+ Platinum PSU are peaked at 50% load, and 240V of power. To give some perspective, if you have a recent PC with an I7 or Ryzen processor (about 120W), and a decent GPU (let's say 1070 at also 120W regular 160W on load) your total load, including other peripherals will be a tad under 350W if you are not overclocking. If you get the HX750 model, you'd then be drawing about 380W from wall at 92% efficiency (with 120V). If you have the average US 12c/kWh rate for utilities, and use the PC for 8 hours of gaming a day, you'd be looking at a power bill at about $135 per year of usage. If you were to go with a 400W bronze PSU, the bill would go up to $150. That's why I don't recommend going to platinum PSU just for efficiency, but there are much better reasons. (Exceptions are if you're unfortunate to be in PG&E service zone with 45c / kWh rates, and need to use 4 GPUs for 24/7 machine learning tasks, or just crypto mining, then the bill differences would be in hundreds of dollars).
The main advantage is the quality of the parts. Most PSU will work fine under moderate load with clean power coming from the wall. However things change under heavy load and/or power issues, especially brownouts, which will not be caught the surge protector. You'd want to avoid them, hence get a more expensive PSU. One way to measure the quality is looking at the warranty length, for example this one has 10 years, which tells a lot about how much Corsair believes in them as the manufacturer.
The second advantage are the better features. Higher end PSUs, like this one will offer modularity, lots of connectors, a silent fan, and sometimes monitoring options. Believe me, modular PSUs are in a different league than the old style ones. For example I have a small PC as a router, which is cramped, but only needs a few connectors (since it only works as a basic router). Having a modular PSU saved a lot of room inside the small box. Also at the top of the line the HXi versions, which I personally prefer over the HX series, comes with a USB connector to the motherboard, which will allow you to monitor the power level of individual ports. This is very useful if you are into overclocking your system.
I have built many PCs (some upgrades, some for friends), and Corsair is one of my go-to manufacturers for PSUs. These work well, has lots of features, and have great build quality.
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