% £-501.95
Cooler Master 850W X Silent Edge Platinum ATX 3.1 Fanless PSU, Fully Modular, Digital Monitor, PCIe 5.1, 80+ Platinum
Cooler Master 850W X Silent Edge Platinum ATX 3.1 Fanless PSU, Fully Modular, Digital Monitor, PCIe 5.1, 80+ Platinum
Cooler Master 850W X Silent Edge Platinum ATX 3.1 Fanless PSU, Fully Modular, Digital Monitor, PCIe 5.1, 80+ Platinum
Cooler Master 850W X Silent Edge Platinum ATX 3.1 Fanless PSU, Fully Modular, Digital Monitor, PCIe 5.1, 80+ Platinum
COOLER MASTER

Cooler Master 850W X Silent Edge Platinum ATX 3.1 Fanless PSU, Fully Modular, Digital Monitor, PCIe 5.1, 80+ Platinum

Product SKU: PSU-850CMXSILEDGEPLAT
Available:
Only 0 item in stock
0 item in stock
In stock
Pre-order
Out of stock
£501.95
Notify me When Available
You will receive an email when the product is available.
Want it delivered by
  • Description
  • Shipping & Returns



Precise Silent Power


Introducing the X Silent Edge Platinum, the industry's first PSU to achieve 850W. The Edgefeatures totally silent and dustless performance, innovative heat pipe technology, advanced heat dissipation, 80 Plus Platinum efficiency, an active bridge rectifier, and a digital monitor powered by Cooler Master’s MasterCTRLsoftware. With these features, the Edge provides precise and silent power.

The X Silent Edge Platinum also includes ATX 3.1 support, a durable 12V-2x6 cable, reliable, industrial-grade Infineon IC chips, fully modular cabling, high-quality Japanese capacitors, and a 15-year warranty. The X Silent E

 
 
Dustless silence
A fanless design provides total silence and a dustfree environment.



Innovative heat pipe technology
Implements our in-house designed superconductive composite heat pipe technology.



Advanced heat dissipation and thermal performance
A patented aluminum thermal mold efficiently dissipates heat.



80 Plus Platinum efficiency certification
This unit is certified to achieve more than 92% efficiency at typical loads.



Active bridge rectifier
Bridge diodes have been replaced with an active bridge rectifier to improve performance.



ATX 3.1 support & a durable 12V-2x6 cable
Includes ATX 3.1 support and a 90-degree 12+4pin (12V-2x6) PCIe 5.1 cable featuring lower temperatures, enhanced durability, and improved safety.



PMBus port support
Server-level standard port monitors efficiency, fan speed, temperatures, current load, and overall performance. 

 

External fan port
An installed external fan can enhance heat dissipation and improve performance of the system.



Digital monitor
Cooler Master’s MasterCTRL software allows users to monitor temperature, current load, and overall performance.



Long-lasting reliability
Built with Infineon industrial-grade IC chips for high quality performance and long-lasting reliability.



Fully modular cabling
Efficiently reduces clutter, increases airflow, and improves overall efficiency and thermal performance.



High-quality Japanese capacitors
Large, high-quality Japanese capacitors feature reduced ripple noise and enhanced reliability.



15-year warranty
This unit comes with a standard limited manufacturing warranty of 15 years from the date of purchase.
 

Description

Specification

  • Form Factor: ATX
  • Series: Cooler Master X Silent Edge Platinum
  • Wattage: 850 W
  • Modular: Fully Modular
  • Compatibility: ATX 12V Ver. 3.1
    PCIe 5.1
  • #Hide#Wattage Range: 800 - 860W
  • Connectors: 1 x ATX 24 Pin = 1x (650mm)
    1 x EPS 4+4 Pin = 1x (650mm)
    1 x EPS 8 Pin = 1x (650mm)
    12 x SATA = 3x (500+150+150+150mm)
    4 x Peripheral 4 Pin = 1x (500+120+120+120mm)
    4 x PCI-e 6+2 Pin = 4x (550mm)
    1 x 12V-2x6 = 1x (650mm)
    1 x USB 10P = 1x (800mm)
  • AC Input: 100 - 240V
  • PFC: Active PFC
  • Fan Type: Fanless design
  • Noise: Silent
  • Max Certification: Platinum
  • Efficiency: 80+ Platinum
    Up to 92% @ Typical Load
  • MTBF: "100,000 Hours"
  • Protection: OPP / OVP / OTP / OCP/ SCP / UVP / Surge & Inrush Protection
  • Additional Features: External fan port
    A patented aluminium thermal mold
    Superconductive composite heat pipe technology
    Active bridge rectifier
    High-quality Japanese capacitors
    Digital monitor powered by MasterCTRL software
    industrial grade Infineon IC chips
    PMBus port support
  • Weight/Dimensions: 4.5 kg
    (LxWxH) 180 x 150 x 86mm
  • Package Weight: 2.0510 kg
  • Warranty: 15 Years
  • #Hide#ATX 3.1/3.0: ATX 3.1

Delivery & Shipping Policy

Last updated: 19/09/2025

At Tech Direct UK, we aim to get your order to you as quickly and efficiently as possible. Please see below for our delivery terms.

1. Delivery Options & Costs

  • Free Delivery – Orders over £50 qualify for free UK standard delivery.

  • Standard Delivery – Orders under £50 are charged at £4.99.

2. Delivery Times

  • Next Day Delivery – The majority of items are shipped via next day courier if ordered before 2:00pm (Monday–Friday).

  • Orders placed after 2:00pm, on weekends, or bank holidays will be processed the next working day.

  • Larger or Heavy Items – Certain products (e.g., heavy furniture, oversized goods) may take 2–5 working days for delivery. Estimated times will be displayed at checkout.

3. Delivery Areas

  • We deliver to all mainland UK addresses.

  • Deliveries to remote areas (e.g., Highlands, Islands, Northern Ireland) may take longer or incur additional charges — these will be shown at checkout before confirming your order.

4. Tracking Your Order

  • Once dispatched, you will receive an email confirmation with tracking details (where available).

  • You can track your delivery via the courier’s website.

5. Missed Deliveries

  • If you are not available at the time of delivery, the courier will leave a card or attempt redelivery.

  • Repeated failed delivery attempts may result in the parcel being returned to us. In this case, re-delivery charges may apply.

6. Risk of Loss

  • Risk of loss or damage to the goods passes to you once they are delivered.

  • Please inspect your order upon receipt and notify us of any issues within 48 hours.

7. Contact Us

If you have any questions about delivery, please contact us:
📧 Email: support@techdirectuk.com

Related products

ARCTIC

ARCTIC 80mm Fan Grill, Nickel Plated Steel

ARCTIC 80mm Fan Grill, Nickel Plated Steel
Sold out
ARCTIC

ARCTIC 40mm Fan Grill, Nickel Plated Steel

ARCTIC 40mm Fan Grill, Nickel Plated Steel
Sold out
AKASA

Akasa Black Rubber Case Fan Pins, Anti-Vibration & Resonance, 60-Pack

Akasa Black Rubber Case Fan Pins, Anti-Vibration & Resonance, 60-Pack
Sold out
Product successfully added to your Shopping Cart
Continue shopping View cart
Light
Dark