ST85F-PT
￭ Compact design with a depth of 140mm for easy integration
￭ High efficiency with 80 PLUS Platinum certification
￭ 100% modular cables
￭ 24/7 continuous power output with 40℃ operating temperature
￭ Class-leading single +12V rail
￭ Strict ±3% voltage regulation and low ripple & noise
￭ Ultra silent 120mm fan with intelligent semi-fanless operation
Remark
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| Designed for 80 PLUS Platinum level of efficiency to reduce wasted heat and save on electricity. | 100% moudlar cable design for use with short cable kit such as SilverStone’s PP05-E or for easy removal in a case with cable routed and tied down. | |
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| Flat cables have much greater flexibility to allow for tighter folding and management of cables. | 140mm depth sets new standard for high wattage PSUs with modular cables. | |
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| Powerful single +12V rail design, perfect for future high-end component upgrades or overclocking. | ±3% regulation and low ripple & noise performance for high stability. | |
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| Ultra-quiet 120mm fan with intelligent RPM control guarantees cool performance and silent operation with minimum of 18dBA during fan operation. The fanless mode operation deactivates when PSU’s loading reaches 20%. |
SPECIFICATIONS
| Model No. |
SST-ST85F-PT
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| Max. DC Output |
850W
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| Power density |
471W per liter
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| Color |
Black（Lead-Free Paint）
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| Combined +3.3V & +5V |
120W
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| Combined +12V |
850W
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| Input Voltage |
90V~264V
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| Input Frequency Range |
47Hz~63Hz
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| PFC |
Active PFC（PF>0.9 at full load）
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| Efficiency |
89%~92% at 20%~100% loading
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| MTBF |
100,000 hours
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| Operating temperature |
0°C ~ 40°C
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| Protection |
Over current protection
Over power protection Over voltage protection Short circuit protection Under voltage protection Over temperature protection |
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| Connectors |
1 x 24 / 20-Pin motherboard connector（550mm）
1 x 8 / 4-Pin EPS / ATX 12V connector（750mm） 1 x 8 / 4-Pin EPS / ATX 12V connector（550mm） 4 x 8 / 6-Pin PCIE connector（"550mm" x 4） 12 x SATA connector（"600mm / 150mm / 150mm / 150mm" x 3） 3 x 4-Pin Peripheral connector（600mm / 150mm / 150mm） 1 x 4-Pin Floppy connector（100mm） |
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| Cooling System |
Single 120mm silent fan
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| Noise Level |
0 ~ 28 dBA
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| Dimension |
150 mm (W) x 86 mm (H) x 140 mm (D)
5.91" (W) x 3.39" (H) x 5.51" (D) |
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| Weight |
2.54 kg
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| Certification |
80 PLUS Platinum
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| Other |
GPU Support list
Compatible with ATX12V v2.4 |
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| If you want to connect four SSDs on one SATA cable, please note that the total +5V output of each cable cannot exceed 5A. We recommend installing on two independent SATA cables to avoid overloading on the cables. |
| ● Specifications presented on this page contains most recent revisions and may differ from those printed on retail boxes or manuals. |
This PSU’s motherboard connector includes a 4pin sense wire that needs to be connected to the PSU’s modular interface as shown. Sense wire helps improve PSU’s regulation performance by around 1%-2%. |
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Dimensions and cable pinout diagram
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PICTURES
- DOWNLOADS
- RECOMMENDATIONS
- PRODUCT REVIEWS
- Q&A
| Describe | Ver | Size | Download |
 ST85F-PT High resolution photos |
2,777 KB |  |
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| ST85F-PT manual |
v1.0 | 129 KB | |
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ST85F-PT eDM (st85f-pt-edm-en.pdf)
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262 KB |
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| Multilanguage installation manual |
V1.0 | 8485KB | |
| Warranty Information |
View | ||
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1. My computer will trip the circuit breaker in my house, how do I prevent this?
If your computer is tripping the circuit breaker that means it is drawing too much power from one outlet. Please do the following：
1. Please make sure the computer is plugged directly into the wall outlet and do not use extension socket or other multiple outlet extension cords with the computer.
2. If the use of extension socket is necessary, avoid combined usage with other higher powered household appliances such as TV, audio amplifier, etc…
3. Contact your local electrician for information on how you can upgrade your house to accommodate higher electrical draw.
2. How to Jump Start your power supply (Paper clip test)
Please refer to the following PDF.
3. How to Jump Start your power supply (spare motherboard test)
Please refer to the following PDF.