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Black SFX-L power supply with 120 mm fan and modular cables

Corsair

Corsair SF850L CP-9020245-NA 850 W SFX-L power supply

SKU CH-M3DF-84497 MPN CP-9020245-NA

Compact SFX-L unit delivers 850 W with full modular cabling, ATX 3.0 compliance, a 120 mm fan featuring Zero RPM mode, and 80 PLUS Gold efficiency

  • Max wattage850 W
  • Modular cablingFull Modular
  • Fan configuration1 × 120 mm Rifle Bearing PWM Fan
  • Main power connector24Pin
  • PCIe power connectors2 × 6+2-Pin
  • SATA power connectors2

Model SFX 80+ Gold (850W)

  • Compact SFX-L design fits small builds
  • ATX 3.0 certified for modern reliability
  • PCIe 5.0 12VHPWR cable supports RTX 40 graphics cards
  • 80 PLUS Gold 90% efficiency with Cybenetics noise rating
  • 105°C Japanese capacitors ensure steady power

Compact SFX-L power for small builds

The Corsair SF850L CP-9020245-NA is an 850 W SFX-L unit built for compact systems that still demand full ATX 3.0 compliance. Its 130 mm length fits many small-form-factor cases while the fully modular Type 5 micro-fit cables reduce clutter and improve airflow. The 120 mm rifle-bearing fan supports Zero RPM mode so the supply stays silent at low loads.

Sustained delivery with 80 PLUS Gold efficiency

Rated for continuous 850 W output, the unit holds 80 PLUS Gold certification at up to 90 percent typical efficiency and carries Cybenetics Standard noise certification. Japanese 105°C-rated primary electrolytic capacitors keep voltage regulation stable during long gaming or render sessions. The single 12 V rail can supply the full 850 W to modern GPUs without rail-balancing concerns.

Check case clearance and GPU cable needs

Verify that your chassis accepts a 130 mm deep SFX-L power supply and that the 24-pin ATX, dual 8-pin EPS, and PCIe cables reach your motherboard and graphics card. The box includes one native 12+4 pin 12VHPWR cable for PCIe 5.0 GPUs such as RTX 40 series cards plus two 6+2 pin and one 6+2 pin pigtail cable for older connectors. Input range is 100-240 V at 47-63 Hz.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $114.99
Cheaper than about 61% of the 10,869 comparable items (median $142.99).
Max wattage 850 W
Typical for this category: the median of 930 items is 850 W.

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Specifications

Product
Brand nameCORSAIR
Product lineSF-L Series
Model nameSF850L
Part numberCP-9020245-NA
Product colorBlack
Product typeATX / ATX 3.0 Compatible
Ports & slots
PCIe power connectors2 × 6+2-Pin
SATA power connectors2
Output type+3.3 V@20A, +5 V@20A, +5VSB@3A
Connection types1 × 24-pin ATX (24-pin) (300 mm)
2 x EPS/ATX12 V Cable (8-PIN) (4+4) (400 mm)
2 x PCI-E Cable (8-PIN) (6+2) (400 mm)
1 x PCI-E Cable (8-PIN) (6+2)*2 pigtail (400 mm, 100 mm)
1 x PCI-E Cable (12+4)PIN (400 mm)
1 x SATA CABLE (4 Straight SATA) (100 mm, 115 mm, 115 mm, 115 mm)
1 x SATA CABLE (4 Right SATA) (100 mm, 115 mm, 115 mm, 115 mm)
1 x PATA-PATA-PATA (100 mm, 115 mm, 115 mm)
Power
Max wattage850 W
Modular cablingFull Modular
Main power connector24Pin
Efficiency certification80 PLUS GOLD Certified
Supply voltage100–240 V
AC input frequency47–63 Hz
Rated input current10A-5A
Size & build
Product dimensions5.12 × 4.92 × 2.5 in
Product weight2.47 lb (1.12 kg)
Shipping weight2.36 kg
Package size285 × 180 × 102 mm
Compatibility
PSU length limit130 mm
In the box
Included itemsF-L Series High-Performance SFX-L Power Supply | AC Power cord | DC Modular Cable Set | Cable Ties
Environment & compliance
PSU noise ratingCybenetics Standard
More details
Fan configuration1 × 120 mm Rifle Bearing PWM Fan

Other versions of this model

1 more in the same range

Questions about this item

Will the 130 mm SFX-L length fit my case?

The unit is 130 mm long. Measure the PSU bay in your chassis against that figure and confirm the SFX-L mounting pattern before buying.

Does the box include a 12VHPWR cable for a modern GPU?

Yes, a 12+4 pin PCIe 5.0 cable is supplied along with two 6+2 pin cables and a pigtail 6+2 pin cable.

What mains voltage range does the PSU accept?

It operates from 100 V to 240 V at 47 Hz to 63 Hz, so it works worldwide without a voltage switch.

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