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Compact SFX power supply in black finish with full modular cables visible

Corn Electronics

Corn Electronics TF850 Platinum SFX 850 W 80 Plus Platinum power supply

SKU CH-T66J-SG0WQ

An SFX power supply delivering 850 W with 80 Plus Platinum efficiency, fully modular cables and a 90 mm fan

  • ColorBlack
  • TypeSFX
  • Maximum Power850 W
  • PFCActive
  • Main Connector20+4Pin
  • +12V RailsSingle
  • 850 W rated output handles demanding builds
  • 80 PLUS Platinum certification keeps efficiency above 90 %
  • Fully modular cables reduce clutter and improve airflow
  • 125 mm compact SFX form factor fits small cases
  • 120 000 hour MTBF and full protection suite ensure long-term reliability

SFX 850 W Platinum power supply

The Corn Electronics TF850 Platinum is an SFX form-factor unit rated at 850 W with 80 Plus Platinum certification. It targets builders of compact desktop systems who need high output from a 125 mm deep chassis. Full modular cabling and a single +12 V rail simplify routing in space-constrained cases. The unit supports both Intel and AMD platforms through a standard 20+4 pin main connector.

Replaces lower-wattage SFX units

This supply steps up from 750 W rated platforms when a build demands more headroom for high-end graphics cards. The jump is worth it when the combined 12 V draw approaches 62.5 A or when four 6+2 pin PCIe connectors are required. Eight SATA power plugs and three peripheral connectors cover dense storage arrays without adapters. Active PFC and LLC resonant topology maintain stable delivery across 100–240 V input.

Sustained load behaviour

Japanese 105 °C capacitors and synchronous rectification keep efficiency above 90 % during extended operation. The 90 mm intelligent fan adjusts speed to thermal load, limiting noise while maintaining component temperatures. Protections include OVP, OCP, OPP, SCP, UVP, OTP and surge protection for continuous reliability. MTBF exceeds 120000 hours under nominal conditions.

Points forts

  • 850 W rated output handles demanding builds
  • 80 PLUS Platinum certification keeps efficiency above 90 %
  • Fully modular cables reduce clutter and improve airflow
  • 125 mm compact SFX form factor fits small cases
  • 120 000 hour MTBF and full protection suite ensure long-term reliability

Caractéristiques

ColorBlack
TypeSFX
Maximum Power850 W
PFCActive
Main Connector20+4Pin
+12V RailsSingle
PCI-Express Connector2 x 6+2-Pin
SATA Power Connector8
SLIYes
Max PSU Length125 mm
ModularFull Modular
Efficiency> 90%
Energy-Efficient80 PLUS PLATINUM Certified
Over Voltage ProtectionYes
Overload ProtectionYes
MTBF>120,000 Hours
Dimensions125 × 100 × 63.5 mm
Weight1.4 kg
Over Load ProtectionYes
Short Circuit ProtectionYes
Under Voltage ProtectionYes
Over Current ProtectionYes
Over Power ProtectionYes
Over Temperature ProtectionYes

Questions sur cet article

Will the 125 mm length and 63.5 mm height fit my SFX case?

The unit measures 125 × 100 × 63.5 mm and weighs 1.4 kg, so verify your case allows at least 125 mm depth and 63.5 mm height for the SFX form factor.

Which cables must I connect during installation and what is the common mistake?

Attach the 20+4Pin motherboard cable, both 4+4Pin CPU cables, the four 6+2Pin PCIe cables and only the SATA cables you need; the frequent error is leaving a required CPU or PCIe cable unplugged because the supply is fully modular.

When should I plan to replace the 90 mm fan or the 105 °C capacitors?

The fan uses intelligent temperature control and the Japanese 105 °C capacitors are rated for long life; with an MTBF above 120,000 hours, replacement is typically only needed if bearing noise appears or after many years of continuous high-load operation.

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