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Corsair RM Series RM850X 2021 850W Power Supply

80 Plus Gold - Fully Modular

PB Tech price
PB Tech price
$ 289 .57
 +GST
$ 333 .01
 inc GST

Out of stock

Limited Supply - only stock on hand available, when sold out we may not be able to source this product again.

Corsair RM Series RM850X 2021 850W Power Supply

80 Plus Gold - Fully Modular

  • Brand: Corsair
  • MPN: CP-9020200-AU
  • Part #: PSUCOR9020200
  • UPC: 840006603375
30
PB Tech price
$ 289 .57 $ 333 .01
 +GST  inc GST

No store stock available. See in-stock alternatives

Click & Collect: Collect unavailable
Delivery: Out of stock
  • Brand: Corsair
  • MPN: CP-9020200-AU
  • Part #: PSUCOR9020200
  • UPC: 840006603375

Max Output Power

750W 850W 1000W

PSU Form Factor

ATX

80 Plus Rating

Gold

Modular

Full

Colour

Black

16-Pin GPU Connector

No

PSU Length

160mm

PSU ATX Version

ATX12V 2.x

Product is out of stock. View similar products in-stock at PB Tech

What PB Tech customers are saying about this product...

See More Reviews
1000W

"Provides plenty of power for my new build and seems stable enough"

JP
By: JeffP98 27/08/25
Verified Owner
1000W

"Great PSU the newer ATX3.1 version to eliminate some of the fears around cable melting in newer GPUs such as the 5080 in my build. Did a lot of research in picking parts, reading a ...view more"

PS
By: PardeepS49 31/07/25
Verified Owner
750W

"Reasonable pricing . Sufficient power and has fan speed controller."

AH
By: AlexH98 24/07/25
Verified Owner

Features

MAGNETIC LEVITATION COOLING MEETS HIGH EFFICIENCY

CORSAIR RMx Series fully modular power supplies are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC with the cooling power of potent Magnetic Levitation fans.

 

135MM MAGNETIC LEVITATION FAN

Utilizes a magnetic levitation bearing and custom engineered rotors for high performance, low bearing noise, and superior reliability.

 

HIGH EFFICIENCY

With upwards of 90% peak efficiency, RMx produces less noise and less heat, which means less time worrying and more time gaming.

 

FULLY MODULAR WITH MULTIPLE EPS12V CONNECTORS

Completely modular cables means you only connect the cables your system needs, and the wide range of included cables adds broad compatibility with modern graphics cards and motherboards.

Also compatible with the 12-pin GPU Power Cable for the hottest new GPUs.

 

ZERO RPM FAN MODE

At low and medium loads the cooling fan switches off entirely for near-silent operation, but once the action picks up, the fan activates, ensuring critical component temps stay in check.

 

TECHNOLOGY AND RELIABILITY

For consistent, reliable power and superb electrical performance, each RMx Series power supply features a robust resonant LLC topology with DC-DC conversion, and 105°C rated 100% Japanese electrolytic capacitors. With precise timings, RMx supports Microsoft Modern Standby, ensuring extremely fast wake-from-sleep times and better low-load efficiency.

 

CERTIFICATIONS

The Cybenetics organization measures efficiency and noise levels across the PSU's entire operational range, using more than 1,450 different load combinations.

The "Gold" efficiency rating is defined as =87% to <91% (depending on input voltage).

The "Standard++" noise level test is measured in those same configurations to be =30 dBA & <35 dBA under noise data averaging.

 

YOUR BUILD, YOUR WAY

Every fully modular CORSAIR PSU is compatible with a wide range of CORSAIR accessories. From individually sleeved cables in a variety of color combinations to 12-pin micro-fit GPU cables and 12VO motherboard cables, complete your build your way.

 

RM850x POWER TABLE

Specifications

Weight

1.7

Adjustable Single/Multi 12V Rail

No

ATX Connector

1

ATX12V Version

v2.4

Continuous output rated temperature C

50°C

Continuous power W

850 Watts

Fan bearing technology

Magnetic Levitation Bearing

Fan size mm

135mm

MTBF hours

100,000 hours

Multi-GPU ready

Yes

80 PLUS Efficiency

80 PLUS Gold Certified

PSU Form Factor

ATX

iCUE Compatibility

No

Zero RPM Mode

Yes

Cable Type

Sleeved and flat, black cables

EPS12V Connector

3

EPS12V Version

v2.92

Modular

Fully Modular

PCIe Connector

4

SATA Connector

14

Special Technology

Magnetic Levitation Fan

Protections

OVP (Over Voltage)
UVP (Under Voltage)
SCP (Short Circuit)
OTP (Over Temp)
OPP (Over Power)

Manufacturer Part No:
CP-9020200-AU
Brand:
Product Type:
Power Supply
UPC
840006603375
Product Family:
RM Series
Shipping Weight:
3.2 kg
PB Part No:
PSUCOR9020200
Product Model:
RM850X 2021
Warranty: 12 months *
* Warranty period is as stated above unless the manufacturer has chosen to specify a longer period.
All warranties are return to base unless otherwise specified.

Reviews

4.8 out of 5 Stars Based on 30 reviews
5 Stars
26
4 Stars
3
3 Stars
0
2 Stars
0
1 Stars
1

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Good so far.

Max Output Power: 1000W

Had some research on psu selection. Corsair rm series is good overall and only thing that people didnt like was the price.
but I bought it on discount season and seems good product for price.

DS
By: DavidS618 17/01/23
Verified Owner
0 out of 0 users found this review helpful
Did you find it helpful?

Plenty of power

Max Output Power: 850W

850W is plenty for all but the crazy systems.
Plenty of cables and 16pin GPU cables are available for the new 40 series cards should you want fully matching cables.
I expect this supply will alst as long as my last corsair (550W when that was plenty) which is now powering another system.
Cables are flat ribbons instead of sheathed individual wires. Depending on your wire management needs it may help or hinder.

G
By: Guest 17/01/23
0 out of 0 users found this review helpful
Did you find it helpful?

One of the best PSU brands

Max Output Power: 850W

I upgraded from an RM750 because of my GPU upgrade, and since that PSU treated me so well, it would've been weird to divert in brands. Corsair PSU's are brilliant.

LK
By: LucaK4 09/01/23
Verified Owner
0 out of 0 users found this review helpful
Did you find it helpful?

a great purchase for this price

Max Output Power: 850W

great product

G
By: Guest 25/07/22
0 out of 0 users found this review helpful
Did you find it helpful?

More than enough Watts

Max Output Power: 850W

Great product.
Is modular which has allowed more versatility in my case and overall tidiness.
Comes with cable ties which was very helpful and just overall good power supply with more than enough watts for all my parts

JO
By: JamesDaPro 14/07/22
Verified Owner
0 out of 0 users found this review helpful
Did you find it helpful?

RM850X

Max Output Power: 850W

Great PSU with silent operation. The cables are well braided but is a bit large.

G
By: Guest 07/07/22
0 out of 0 users found this review helpful
Did you find it helpful?

Delivery & Pick-up

Potential courier delays: Please note that due to the high volumes currently within the NZ courier network there is potential for some deliveries to be delayed.

Delivery Estimates

The estimated time to ship for each product we sell is detailed on the individual product page just underneath the price. From when your items ship, products typically arrive within 1-2 working days for North Island deliveries and 2-3 working days for South Island deliveries. Rural deliveries may take an extra working day. Bulk & hazard deliveries may take an extra 2-4 working days.

Next Day Delivery

Need your order in a hurry? PB Tech offers next day delivery for local Auckland addresses. Simple place your order before 4pm (provided your items are in stock) and select our next day delivery option in the checkout. T&C's apply. Learn more about Next Day Delivery.

Same Day Delivery

Need your order in a hurry? PB Tech offers same day delivery for Auckland, Hamilton, Wellington and Christchurch. Simple place your order before 1pm (provided your items are in stock) and select one of our same day delivery options 'Evening Delivery' or 'Urgent 3-hour Delivery' in the checkout. T&C's apply. Learn more about Same Day Delivery.

Shipping Costs

Shipping costs vary based on your location and the items being shipped and in some cases shipping may even be FREE.

To calculate what the shipping costs will be for your order, add the items you are interested in to your cart, view the Shopping Cart page, and select your 'Delivery Area' to calculate the shipping cost.

Shipping Security & Insurance

All orders shipped by PB Tech are sent via a courier with a signature required for each delivery. In some cases, and only where you have given the courier company permission to leave orders at a designated location, your order may be delivered without requiring a signature. All orders sent by PB Tech are fully insured in the unlikely event that your item(s) are damaged or go missing in transit.

1 Hour Store Pick-up / Click & Collect

You can pick-up your online order from any of our stores nationwide. You can select which store you want to pick up from at the checkout. Provided the store you select has stock and there's no hold-ups with payment we will have your order ready within 1 hour (during normal trading hours for that store) otherwise it may take up to 5 working days to transfer the stock to the store so your order can be fulfilled. Learn more about our Click & Collect process.

Overseas Shipments

PB Tech regularly ships overseas to Australia and beyond. If you are located in Australia, you can order directly from our Australian site www.pbtech.com/au. If you are from another country you can order from www.pbtech.com

Returns & Warranty

7 day right of exchange

If you change your mind after making a purchase, or realise you have ordered the incorrect item, you can enjoy the peace of mind that we offer a 7 day exchange policy.

To exchange a product, goods must be sealed and unopened, with packaging in original condition, accompanied by a valid receipt dated no more than 7 calendar days from when you request an exchange. A 20% restocking fee may be applied where goods are not returned in sealed, original packaging condition.

If there is not a suitable product that can be exchanged for your returned item you will be offered a credit on your account or gift card based on the value paid at the time of purchase. Items purchased on finance cannot be exchanged for a gift card.

 

Hassle free warranty service

If your product develops a fault within the manufacturer warranty period, you can either contact the manufacturer directly (some manufacturers provide a high level of warranty service - including free pickup or in some cases onsite repair), or return to one of our services centres / stores. Where the product has been directly imported by PB Tech, you need to contact us directly or present the product at any one of our service centres / stores together with your proof of purchase.

If your product develops a fault outside of the manufacturer warranty or PB Tech warranty period, we offer a full repair service and are an authorised repair agent for leading brands such as Samsung, HP, Toshiba, Lenovo and more.

 

Returning a product / making a warranty claim

To contact the manufacturer directly to troubleshoot your product or to request a warranty repair, please view the list of manufacturer / brand warranty contacts (for products imported directly by PB Tech please return to us directly by completing our request a return form).

To return a product to PB Tech directly, please complete our request a return form.

Or view our returns policy for more information.

Corsair RM Series RM850X 2021 850W Power Supply 80 Plus Gold - Fully Modular

  • Brand: Corsair
  • MPN: CP-9020200-AU
  • Part #: PSUCOR9020200
  • UPC:840006603375
PB Tech price $289.57 Excluding GST PB Tech price $333.01 Including GST

Date Created: 06:01, 16-09-2025
Product URL: https://www.pbtech.co.nz/product/PSUCOR9020200/Corsair-RM-Series-RM850X-2021-850W-Power-Supply-80?pg=3
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Wellington 0
Auckland - Head Office 0
Auckland - East Tamaki Warehouse 0
Christchurch - Hornby 0
Christchurch - Christchurch Central 0
Dunedin 0

Features

MAGNETIC LEVITATION COOLING MEETS HIGH EFFICIENCY

CORSAIR RMx Series fully modular power supplies are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC with the cooling power of potent Magnetic Levitation fans.

 

135MM MAGNETIC LEVITATION FAN

Utilizes a magnetic levitation bearing and custom engineered rotors for high performance, low bearing noise, and superior reliability.

 

HIGH EFFICIENCY

With upwards of 90% peak efficiency, RMx produces less noise and less heat, which means less time worrying and more time gaming.

 

FULLY MODULAR WITH MULTIPLE EPS12V CONNECTORS

Completely modular cables means you only connect the cables your system needs, and the wide range of included cables adds broad compatibility with modern graphics cards and motherboards.

Also compatible with the 12-pin GPU Power Cable for the hottest new GPUs.

 

ZERO RPM FAN MODE

At low and medium loads the cooling fan switches off entirely for near-silent operation, but once the action picks up, the fan activates, ensuring critical component temps stay in check.

 

TECHNOLOGY AND RELIABILITY

For consistent, reliable power and superb electrical performance, each RMx Series power supply features a robust resonant LLC topology with DC-DC conversion, and 105°C rated 100% Japanese electrolytic capacitors. With precise timings, RMx supports Microsoft Modern Standby, ensuring extremely fast wake-from-sleep times and better low-load efficiency.

 

CERTIFICATIONS

The Cybenetics organization measures efficiency and noise levels across the PSU's entire operational range, using more than 1,450 different load combinations.

The "Gold" efficiency rating is defined as =87% to <91% (depending on input voltage).

The "Standard++" noise level test is measured in those same configurations to be =30 dBA & <35 dBA under noise data averaging.

 

YOUR BUILD, YOUR WAY

Every fully modular CORSAIR PSU is compatible with a wide range of CORSAIR accessories. From individually sleeved cables in a variety of color combinations to 12-pin micro-fit GPU cables and 12VO motherboard cables, complete your build your way.

 

RM850x POWER TABLE

Specifications

Weight

1.7

Adjustable Single/Multi 12V Rail

No

ATX Connector

1

ATX12V Version

v2.4

Continuous output rated temperature C

50°C

Continuous power W

850 Watts

Fan bearing technology

Magnetic Levitation Bearing

Fan size mm

135mm

MTBF hours

100,000 hours

Multi-GPU ready

Yes

80 PLUS Efficiency

80 PLUS Gold Certified

PSU Form Factor

ATX

iCUE Compatibility

No

Zero RPM Mode

Yes

Cable Type

Sleeved and flat, black cables

EPS12V Connector

3

EPS12V Version

v2.92

Modular

Fully Modular

PCIe Connector

4

SATA Connector

14

Special Technology

Magnetic Levitation Fan

Protections

OVP (Over Voltage)
UVP (Under Voltage)
SCP (Short Circuit)
OTP (Over Temp)
OPP (Over Power)

Date Created: 06:01, 16-09-2025
Product URL: https://www.pbtech.co.nz/product/PSUCOR9020200/Corsair-RM-Series-RM850X-2021-850W-Power-Supply-80?pg=3