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HELA 850R, 80 PLUS Platinum 850W, Fully Modular, ATX Power Supply

  • SKU: 17786421
  • Manufacturer: SILVERSTONE
  • Availability: USUALLY SHIPS WITHIN 1-3 WEEKS
Starting At
  • Support 12V-2x6 PCIe connector in compliance with ATX 3.1 standards.
  • High efficiency with 80 PLUS Platinum certification
  • 100% modular cables
  • 24/7 continuous power output with 50? operating temperature
  • All Japanese electrolytic capacitors
  • Silent running 120mm Fluid Dynamic Bearing (FDB) cooling fan
  • Equipped with sem-fanless switch function
  • 180° angled SATA connectors, ideal for systems with a parallel hard drive layout.
Product No. SST-HA850R-PMA
Model (safety certification) SST-AX0850MCPT-C
Color Black (lead-free paint)
Max. DC Output 850W
Power density 471W/L
Load Range
Output +3.3V +5V +12V +5VSB -12V
Max.(Amps) 20A 20A 70.8A 2.5A 0.3A
Min.(Amps) 0A 0A 0A 0A 0A
Range (%) ±5% ±5% +5~-7% ±5% ±5%
Line Reg.(%) ±1% ±1% ±1% ±1% ±1%
Ripple(mVp-p) 50mV 50mV 120mV 50mV 120mV
Combined +3.3V & +5V 100W
Combined +12V 850W
Input Voltage 90 ~ 264 Vrms
Input Frequency Range 47Hz ~ 63Hz
PFC Active PFC(PF>0.9 at full load)
Efficiency 89% ~ 91% overall efficiency
MTBF 100,000 hours
Operating temperature 0°C ~ 50°C
Protection Over Current Protection
Over Power Protection
Over Voltage Protection
Short Circuit Protection
Over Temperature Protection
Connectors 1 x 24 / 20-Pin motherboard connector
2 x 8-Pin EPS / ATX 12V connector
4 x 8 / 6-Pin PCIe connectors
1 x 12+4-Pin 12VHPWR connector
12 x SATA connector
3 x 4-Pin Peripheral connector
1 x 4-Pin Floppy adapter connector
Cooling System 120mm Fluid Dynamic Bearing fan
Noise Level 0 dBA minimum
Certification 80 PLUS Platinum
Form factor ATX (PS2)
Dimension 150mm (W) x 86mm (H) x 140mm (D)
5.9” (W) x 3.39” (H) x 5.51” (D)