Nzxt e psu

Nzxt e psu DEFAULT
Ports & interfacesATX Power connector (24-pin)checkmarkMotherboard power connector24-pin ATXNumber of SATA power connectors8Peripheral (Molex) power connectors (4-pin)6CPU power connector (4+4 pin)checkmarkPCI Express power connectors (6+2 pin)6Motherboard power cable length61 cmSATA power cable length800 mmCPU power cable length65 cmPeripheral (Molex) power cable length700 mmPCI Express power cable length75 cmWeight & dimensionsHeight86 mmWidth150 mmDepth150 mmEnergy managementInput current12-6 ANominal power850 WPower Factor Correction (PFC) typeActiveCombined power (+3.3V)100 WCombined power (+12V)840 WCombined power (+5V)100 WCombined power (-12V)3.6 WCombined power (+5Vsb)15 WMax output current (+3.3V)20 AMax output current (+12V)70 AMax output current (+5V)20 AMax output current (-12V)0.3 AMax output current (+5Vsb)3 AAC input frequency50/60 HzAC input voltage100 - 240 VTotal power850 WOperational conditionsOperating temperature (T-T)0 - 50 °CDesignProduct colourBlackNumber of fans1 fan(s)Cooling typeActiveFan diameter12 cmFan locationTopFan speed0 - 1800 RPMPerformanceCertificationCB / CE / FCC / TUV / cTUV-SUDus / China CCC / Taiwan BSMI / Australia RCM / EACMean time between failures (MTBF)100000 hNoise level32.3 dBPurposePCBearing technologyFDBATX version2.4EPS version2.9280 PLUS certification80 PLUS GoldPower supply unit (PSU) form factorATXEAN5060301694389
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Power Supplies

Clean and Reliable 80 Plus Rated PSUs

Silent Operation

The C Series Bronze utilizes DC-DC technology to allow operation to generate less heat to reduce the fan RPM. The 120mm FDB silent fan ensures the power supply can silently operate at high load. Capacitors, transformers, and coils have undergone treatment to reduce electromagnetically induced acoustic noise.

Compatible and Efficient

The C Series Bronze fits any case supports ATX PSU, supporting most of the latest NVIDIA 30 series and AMD 6000 series GPUs.

Maximum Efficiency

At 50% Load, power conversion efficiency reaches 2% higher than 80plus Bronze Standard.

Built for Builders

The semi-modular design ensures easier installation and less clutter. The stylish matte black sleeved main cables resist heat damage and fraying, delivering better durability and longevity.

You may also like

NZXT E850 PSU - CAM Monitoring Software

Nzxt C850 850 Watt 80 Plus Gold SMPS

DimensionsL: 150mm W: 150mm H: 86mmMaterial(s)Steel, PCB and plasticCompliance StandardATX12V v2.4 / EPS12V v2.92PF Correction[email protected]AC Input Rating100-240Vac, 9-4.5A, 50-60HzDC Output RatingFan SpecsDimensions: W: 120mm H: 120mm D: 25mm
Speed: 0-2,200 + 220 RPM
Airflow: 73.9 CFM
Noise: 32.3 dBA
Bearing: FDB (Fluid Dynamic Bearing)Hazardous MaterialsRoHS & China RoHSEnergy Efficiency80 Plus Gold
20% loading: 87%, 50% loading: 90%, 100% loading: 87% @115VacOperation Temperature0 to 50°CRegulations & Certifications (EMC & Safety)CB / CE / FCC / TUV / cTUV-SUDus / China CCC / Taiwan BSMI / Australia RCM / EACMTBF100,000 hoursOutput Connector(s)1 x 24-pin ATX power
2 x 4+4-pin CPU power
6 x PCIe (6+2 pin)
8 x SATA
6 x PeripheralsIncluded Cables1 x 24-pin ATX power (length: 610 mm, Nylon sleeving)
2 x 4+4-pin CPU power (length: 650 mm, Nylon sleeving)
3 x PCIe (6+2 pin) (length: 675 +75 mm, Nylon sleeving)
2 x SATA (length: 500 + 100 +100 +100 mm)
2 x Peripherals (length: 500 + 100 +100 mm)Model NumberNP-C850M-UKWarranty10 YearsNote***Features, Price and Specifications are subject to change without notice.

E psu nzxt

Features & Specifications

The E850 is NZXT's E-series flagship. It's an interesting power supply that achieves good performance, but is constrained by the analog platform it's based on. So, why pay $30 to $40 more for its digital control capabilities? If you are interested in monitoring the PSU through software and accessing information like rail voltages and power output, that small premium seems fair. If those extras aren't of use to you, though, the original Seasonic SSR-850FX is probably a better buy.

NZXT is well known for its cases. However, there was a time when it was also prolific on the PSU scene. Then it withdrew from the power supply market altogether. About a year ago, the company decided to collaborate with Seasonic for the release of its E family, consisting of three models with capacities ranging from 500W to 850W. The trio is based on a modified version of Seasonic's popular Focus Plus platform, which appears to utilize a semi-digital design. Nevertheless, performance doesn't change; the E850 matches the older analog-only version. And yet its price tag is about $30 higher than the corresponding Focus Plus Gold model.


Manufacturer (OEM)Seasonic
Max. DC Output850W
Efficiency80 PLUS Gold, ETA-A (88-91%)
NoiseLAMBDA-S+ (35-40 dB[A])
Modular✓ (Fully)
Intel C6/C7 Power State Support
Operating Temperature (Continuous Full Load)0 - 50°C
Over-Voltage Protection
Under-Voltage Protection
Over-Power Protection
Over-Current (+12V) Protection
Over-Temperature Protection
Short Circuit Protection
Surge Protection
Inrush Current Protection
Fan Failure Protection
No Load Operation
Cooling120mm fluid dynamic bearing fan (HA1225H12SF-Z)
Semi-Passive Operation✓ (Selectable through software)
Dimensions (W x H x D)152 x 88 x 152mm
Weight1.64 kg (3.62 lb)
Form FactorATX12V v2.4, EPS 2.92
Warranty10 years

Since the E850 employs Seasonic's Focus Plus Gold platform, it naturally sports the same 80 PLUS Gold certification. On the Cybenetics scale, it scores ETA-A efficiency. The E850 also earns a LAMBDA-Standard+ noise rating, meaning that it's not particularly quiet.

All of the protection features we expect are included. Further, NZXT's cooling fan measures 120mm across and uses a fluid dynamic bearing that should last a very long time. This PSU does feature a semi-passive mode that can be deactivated through bundled software. It'd be even better if there was a physical switch to toggle this feature on or off, though.

Finally, the PSU's enclosure is relatively compact, and its 10-year warranty is ample.

Power Specifications

Max. PowerAmps20207030.3
Total Max. Power (W)850

The minor rails offer up to 100W combined power, while the +12V rail delivers as much as 70A. It's easily able to handle a couple of high-end graphics cards. The 5VSB rail's 15W capacity should suffice, too.

Cables & Connectors

Modular Cables
DescriptionCable CountConnector Count (Total)GaugeIn Cable Capacitors
ATX connector 20+4 pin (610mm)1118-22AWG
4+4 pin EPS12V (650mm)2218AWG
6+2 pin PCIe (680mm+80mm) 3618AWG
SATA (500mm+100mm+100mm+100mm)2818AWG
Four-pin Molex (500mm+100mm+100mm)2618AWG
USB Cable (560mm)1128AWG
AC Power Cord (1360mm) - C13 coupler1118AWG-

All of the E850's cables are long, but the distance between its peripheral connectors is just too short at 10cm. We'd at least like to see the four-pin Molex connectors 15cm from each other.

The connector count is sufficient, including two EPS cables and six PCIe connectors on three cables. Moreover, with eight SATA and six 4-pin Molex connectors, you'll have little trouble adding hard drives or fans in the future.

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Aris Mpitziopoulos is a Contributing Editor at Tom's Hardware US, covering PSUs.
NZXT E850 Digital PSU - Old School Unboxing!

NZXT E850 850W Gold Digital ATX Power Supply Review

Introduction, Specifications, and Pricing

NZXT E850 850W Gold Digital ATX Power Supply Review 17 |


NZXT is one of those companies where we know their chassis very well, along with their coolers. However, one mostly unexplored area is their PSU offerings. This changes today, as we are looking at the E850, which is a CAM enabled digital PSU.

The E850 is targeted at multi GPU systems per their opening paragraph from their webpage for the product. On top of this, having three GPU pigtail cables lend credence to this claim. The E850 is targeted to be the right fit for those looking to pull around 550-650W of power as it is rated at 850W so, with standard loading types a mainstream or even some HEDT CPU's and a dual card setup with OC should be able to run on the E850 without much issue.

The key features as listed on the NZXT page is as follows:

  • Monitor your performance (Cam enabled)
  • Safer Power (multiple critical protections)
  • Reliable and Efficient (105C Japanese Capacitors)
  • Run Silent (Zero RPM Fan)
  • All The Essentials (Fully Modular Design)

These features are relatively standard for a modern good quality PSU design. The ability to use the CAM software to not only monitor but adjust OCP on the GPU and CPU rails independently.

NZXT E850 850W Gold Digital ATX Power Supply Review 55 |

The E850 is simply known by that very name, so that makes it easy. The part number is a bit more convoluted showing NP-1PM-E850A-US, and I'm sure I could decode what this all means if we took the time to dig into each part, but let's just say this is the North America version or any other country which uses the same outlet type. The E850 measures in at 150mm x 150mm x 86mm, which means this unit should fit in all but the most compact scenarios which may require the smallest 140mm supplies.

NZXT's MSRP listed on their website is $164.99. This price point places the E850 in competition with the Supernova 850 G5 from EVGA and even the Focus PX-850 from Seasonic, which is a Platinum rated 850W unit. NZXT's supply will need to show some excellent performance and potential to earn its place as a recommended PSU at this price and wattage level.

Shannon's Power Supply Test System Specifications

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NZXT E850 850W Gold Digital ATX Power Supply

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* Prices last scanned on 10/16/2021 at 6:56 am CDT - prices may not be accurate, click links above for the latest price. We may earn an affiliate commission.


NZXT E850 850W Gold Digital ATX Power Supply Review 01 |

The front of the E850 packaging is standard NZXT with a clean overall aesthetic. The name is the headline here, along with the listing of it being a digital power supply. The front rounds things out with an angled shot of the fan grille side of the E850 along with the side labeling showing.

NZXT E850 850W Gold Digital ATX Power Supply Review 02 |

The rear is a fair bit more involved with several informational sections. First up is an installed image of the PSU flanked by a small paragraph where NZXT explains its new E series of digital PSU. To the right, we have the system requirement along with a spec table. The bottom of this side shows four feature images along with small explanations of them.

NZXT E850 850W Gold Digital ATX Power Supply Review 03 |

Flipping top one of the smaller sides, we find a feature breakdown in five languages. There are also two warning/caution labels on the lower right portion.

NZXT E850 850W Gold Digital ATX Power Supply Review 04 |

Flipping to the small opposing side and we find the same feature bullet points, but this time in six more languages, one of them being English.

NZXT E850 850W Gold Digital ATX Power Supply Review 05 |

Here we have the flap used to open the box, and it is where NZXT installs the inventory control labels for the E850. There are also several compliances and regulatory icons found flanking the lower area near the label section.

NZXT E850 850W Gold Digital ATX Power Supply Review 06 |

Opening the package, we find the enclosure split into two sections. The foam section is where the PSU is held, while the accessories and cables are in the purple zipper tote bag.

Hardware & Documentation

NZXT E850 850W Gold Digital ATX Power Supply Review 08 |

Here you get a better look at the zipper bag/tote, which holds all of the accessories and cables for the E850.

NZXT E850 850W Gold Digital ATX Power Supply Review 09 |

Here is the full cable array that comes with the E850:

  • Main AC input cable
  • 24-pin ATX cable
  • 2x 4+4 EPC CPU power cables
  • 3x dual 6+2 GPU PCIe Cables (six total 6+2 connectors)
  • 2x SATA power cables (eight total SATA power connectors)
  • 2x PATA (Molex) power cables (six total PATA power connectors)
  • Mini USB cable (For CAM digital monitoring and control)
NZXT E850 850W Gold Digital ATX Power Supply Review 07 |

The manual for the E850 is a large multi-fold sheet that provides essential information for the PSU and how to connect the various connectors.

NZXT E850 Power Supply

NZXT E850 850W Gold Digital ATX Power Supply Review 10 |

After removing the PSU from its foam protection, we find it is in a fabric bag to further protect the unit. There is also a plastic bag inside this, which holds the PSU. The E850 should arrive to you in good shape.

NZXT E850 850W Gold Digital ATX Power Supply Review 11 |

Looking at the fan side of the PSU chassis, we see the cooling fan and its associated grille. NZXT opted to do the new modern way of creating a grille by merely making a grille out of the PSU case itself. This option offers many stylized options along with omitting the potential for rear PSU entry chassis sticking or catching where the grille sticks above the case surface. NZXT chose standard circular holes as its design option for ventilation on the E850.

NZXT E850 850W Gold Digital ATX Power Supply Review 12 |

Flipping the E850 ninety degrees, we now see the side aesthetic, and I am happy to say that NZXT went very subtle. I do like that the black finish is almost all you see with a simple NZXT and the E850 in contrasting tones to create stealth yet workable labeling. The indented circular groove in the side of the PSU is a strange yet welcome aesthetic as it breaks what would be a flat square box.

NZXT E850 850W Gold Digital ATX Power Supply Review 13 |

Flipping to the side opposing the fan grille, we find the label. This is the main spec label offering product information, such as the output table. There are also several regulatory and compliance icons on this label, along with the serial number sticker in place.

NZXT E850 850W Gold Digital ATX Power Supply Review 14 |

Flipping over to the opposing side, we see the indentation again, along with the stealth NZXT and E850 badging. I do like this as it should show nicely through a window in your PSU shroud or if your chassis happens to not come with a PSU cover.

NZXT E850 850W Gold Digital ATX Power Supply Review 15 |

Here we find the input side of the E850. Here we find the main AC input socket along with the toggle, which will cut the main feed should that be needed. Here we see that the exhaust outlet venting is the same circular openings.

NZXT E850 850W Gold Digital ATX Power Supply Review 16 |

And to round out the visual overview, we have the output side of the E850. Here, we see that the E850 has all the appropriate connections for the included cables minus one SATA or peripheral cable. There are only three connectors here, but I think that's more than fair as the chance of having six PATA connectors and eight SATA is quite unlikely. Also note that the USB connector here is for CAM communication, if you do not plug this in, the CAM software cannot interface with the E850 unit.

I would like to mention one last thing before we move on to testing, and that is the unique inclusion NZXT made. I love the fact that NZXT took the time to place a warning on the output side where you plug in your modular cables to remind users to use only cables made for that PSU to avoid shorts or damage to the PSU or components. Many of you would probably be surprised to hear how often that happens.

Real World Test System & Observations

NZXT E850 850W Gold Digital ATX Power Supply Review 17 |

In the first test, we installed two GPUs along with our 2990WX, which allowed us to pull near 730+ Watts under real-world workloads. Now do keep in mind that your gaming rig will likely never pull this much consistently unless you use it for offload rendering, and you have a massive CPU like ours. The E850 pulled this wattage for over an hour without a fuss, and internal recorded temps topped out at around 42C.

NZXT E850 850W Gold Digital ATX Power Supply Review 18 |

Moving toward the heavy lifting, we equipped three GPUs, and with some pushing of the CPU, we got our average wattage draw to around 960+ Watts here, which is well over the rated capacity. The NZXT supply pulled this off without any issues and full stability on our workloads for over an hour.

Now Let's take a peek at the CAM software during further testing and see what it has to offer.

CAM Digital Monitoring Software

NZXT E850 850W Gold Digital ATX Power Supply Review 22 |

Here we have the power tab of CAM, and I must say that this supply can pull way more than we showed previously as you can see the maximum combined power went off the charts to over 1021W. The external meter recorded close to 1100W during this run, which is impressive for an 850W supply. I do like that NZXT lists the power draw of each major component category rail.

NZXT E850 850W Gold Digital ATX Power Supply Review 24 |

Here we see the power tab when scrolled down, and you can see that there is an "other" group for wattage, which is all the ancillary power draw beyond CPU and GPU.

NZXT E850 850W Gold Digital ATX Power Supply Review 25 |

Clicking the advanced button on the top of the previous main power tab gives us this screen. Here it shows all the rail amperages for each. The total power draw at that point is also shown in real-time. NZXT even allows you to enable tuning of the OCP for both the CPU and GPU rails.

NZXT E850 850W Gold Digital ATX Power Supply Review 26 |

Not PSU related necessarily, but since its there, I will show the overclocking tab, which allows you to tune your GPU directly from the CAM App. I have not tested this, as I use other applications for this, such as MSI Afterburner or EVGA Precision. Still, it is another option that could eliminate another piece of software.

NZXT E850 850W Gold Digital ATX Power Supply Review 27 |

Here we see the cooling tab, which allows for the adjustment of the E850's cooling fan. Default it comes with a silent profile that won't even be on until loaded enough to need cooling. Moving to performance allows the fan to spin up higher, which will be a bit noisier in favor of better thermals. Next would be fixed mode, which sets the fan to a higher fixed fan speed (40% default) constant speed. Lastly, we have a custom profile where you can define your fan curve to meet your needs. Clicking the fan icon next to the word fan will open a fan graph where you can determine ramping or fixed speeds of the PSU fan.

Final Thoughts

When I first heard from NZXT that they wanted to send me their digital PSU I was interested. Since NZXT found ways to make a core chassis series that is unique, chic, and modern feeling across the board, I was excited to see what they could do in the PSU arena.

NZXT did not disappoint as they created a PSU series that fits well in the styling of their chassis. The CAM software is usable and ensures you can monitor and adjust your PSU as you desire. The PSU also as you observed in our testing, can pull well above its rated wattage class.

NZXT E850 850W Gold Digital ATX Power Supply Review 18 |

What we like

I feel like NZXT worked with the right people on this PSU. The E series, if they are all to the same level as the E850 I received today, are reliable options for enthusiasts' users. The sleek aesthetic adds to the appeal of the supply, especially if you can see it in your chassis. The CAM control integration works well, and while we had some early hiccups, they were quickly sorted with an update to the software.

What we would like to see improved

I would like to see the E series come out of the box with a notification to users that the PSU comes default in silent mode so the fan may not spin. Also, I would like to see the button that reveals the chart for plotting fan curves to be more apparent or just open automatically. I stumbled onto that discovery by clicking around the software, but I could see several users missing it entirely.

NZXT carved out a nice niche for itself with a stylish PSU option, but there are other options with slightly higher efficiency at this price point. This means it will lose some value points, but overall I observed no adverse activity or issue that would deter me from seeing the E850 as being worth its asking price.

NZXT offers one hell of a power supply with the E850, and it is interesting to see where their PSU offerings will go from here.

Shannon's Power Supply Test System Specifications

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The Bottom Line

NZXT's E850 performed well above expectations, and is well recommended. If the price dropped around $10 - $15, it would be unbeatable.

TweakTown award

NZXT E850 850W Gold Digital ATX Power Supply

TodayYesterday7 days ago30 days ago




* Prices last scanned on 10/16/2021 at 6:56 am CDT - prices may not be accurate, click links above for the latest price. We may earn an affiliate commission.

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Shannon Robb

Shannon Robb

Shannon started his PC journey around the age of six in 1989. Now till present day, he has established himself in the overclocking world, spending many years pushing the limits of hardware on LN2. Shannon has worked with design and R&D on various components, including PC systems and chassis, to optimize the layout and performance for enthusiasts.

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