Corsair TXM 850W Semi Modular PSU

QuickFind: 279546 Mfr part code: CP-9020041-UK
  • 80plus Bronze certified efficiency
  • Modular cabling system, use only the ones you need
  • Ultra-quiet, 140mm double ball-bearing fan
  • 8x SATA hard drive connectors
  • 4x 6+2pin PCI-Express connectors

Product Description

Corsair TXM 850W Semi Modular PSU

The award-winning reliability of the Enthusiast Series. Now, with the flexibility of modular cables. With the modular cabling system, you can connect only the cables you need.   
Cable-ready.  The modular cabling system includes a complete set of flat, detachable cables that allow you to use only the ones you need. This allows you to reduce clutter for a clean-looking system with improved airflow. The attached ATX cable is fully-sleeved for superior protection. And, all cables are extra long to support full-tower PC systems.

80 PLUS Bronze certification for smart, efficient power delivery.  80 PLUS Bronze is your guarantee that your Enthusiast Series Modular power supply will deliver 85% efficiency or higher at 50% load. Superior efficiency is essential in a high performance power supply - it runs quieter, generates minimal excess heat, and saves you money every month.

Ready to take the heat.  Enthusiast Series Modular is designed for reliable operation in high-performance PCs where clean, stable power is important. It's rated for full, continuous power delivery at an ambient temperature of up to 50° Celsius. The ultra-quiet, double ball-bearing fan delivers excellent airflow with exceptionally   Critical protection for your components. Adherence to exacting performance standards for voltage regulation helps protect your high-performance gear. Exceptionally clean power output with low ripple and noise and multiple protection mechanisms gives you the confidence you need.

Built To Last  Corsair Enthusiast Series Modular power supplies are backed by a five-year warranty and are designed to be your reliable power supply of choice through multiple system upgrades.

The Corsair Advantage  With a long history of building enthusiast-grade memory and components, we've earned a reputation for quality, compatibility, and performance. Should you ever need help, we're available by phone call, email, and web forum. 

Warranty:  Five years   Dimension:  150mm(W) x 86mm(H) x 160mm(L)   Power:  850 Watts   80 Plus:  Bronze
Cable connectors 
ATX Connector  1  
EPS Connector  1  
PCI-E Connector  4 
4 Pin Peripheral Connector  4  
SATA Connector  8  
Floppy Connector  2 
MTBF  100,000 hours

Technical Specification

Corsair TXM 850W Semi Modular PSU


Width 15 cm
Depth 16 cm
Height 8.6 cm
Device Type Power supply - active Power Factor Correction (PFC) - internal
Specification Compliance ATX12V 2.31/ EPS12V 2.92
PSU Form Factor ATX
Localisation United Kingdom


MTBF 100,000 hours
Features Over current protection, over voltage protection, undervoltage protection, short-circuit protection, single 12V rail, dual ball bearing cooling fan, semi-modular
Included Accessories Cable ties, mounting kit
Cooling System 140 mm fan
Compliant Standards FCC Class B certified, TUV, C-Tick, CB, CCC, cTUVus, ErP Ready

Manufacturer Warranty

Service & Support Limited warranty - 5 years
Service & Support Details Limited warranty - 5 years

Power Device

Input Voltage AC 90-264 V
Power Output Connectors Details 1 x power 24 pin ATX ¦ 1 x power 8 pin EPS12V ¦ 8 x 4 PIN internal power ¦ 8 x 15 pin Serial ATA power ¦ 2 x 4 PIN mini-power connector
Output Voltage +3.3, +5, ±12 V
Power Capacity 850 Watt
Output Current +3.3V - 30 A ¦ +5V - 30 A ¦ +12V - 70 A ¦ -12V - 0.8 A ¦ +5VSB - 3 A
Modular Cable Management Yes
80 PLUS Certification 80 PLUS Bronze

Dimensions & Weight

Width 15 cm
Depth 16 cm
Height 8.6 cm
Weight 2.85 kg

Dimensions & Weight (Shipping)

Shipping Width 29.3 cm
Shipping Depth 21.5 cm
Shipping Height 13.5 cm
Shipping Weight 3.25 kg

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Add-ons and Accessories

PSU Accessories

Premium Braided 30cm PSU Extension Cable Kit - Black

£12.99 inc. vat
£25.02save £12.03
£10.82 ex. vat
£20.85save £10.03

Premium Braided 30cm PSU Extension Cable Kit - White

£12.99 inc. vat
£15.32save £2.33
£10.82 ex. vat
£12.76save £1.94