
Leadex III 850W (SF-850F14PE)
| Electronic Loads | Chroma 63601-5 x2 Chroma 63600-2 Chroma 63640-80-80 x10 Chroma 63610-80-20 |
| AC Sources | Chroma 6530, APM SP300VAC4000W-P, GW Instek ASR-3500 |
| Power Analyzers | Rohde & Schwarz HMC8015 & NPA701 |
| Oscilloscopes | Picoscope 4444, Siglent SDS2104X PLUS |
| Sound Analyzer | Bruel & Kjaer 2270 G4 |
| Microphone | Bruel & Kjaer Type 4955-A |
| Temperature Logger | Picoscope TC-08 |
| Tachometer | UNI-T UT372 |
| Multimeters | Keysight 34465A |
| EMI Analyzer | TekBox TBMR-110M-EU |
| Isolation Transformer | 4kVA |
| UPS | FSP Champ Tower 3kVA, CyberPower OLS3000E 3kVA |
| Testing Methodology | Cybenetics PSU Test Protocol |
| Voltage | 115V | 230V |
|---|---|---|
| Efficiency (>1450 Load Combinations) | 90.185% | 91.996% |
| Efficiency Graphs | ![]() | ![]() |
| Average PF (>1450 Load Combinations) | 0.982 | 0.942 |
| 12V Step | - | |
| 5V/3.3V Step | - | |
| Standby Power Consumption | 0.0493W | 0.1089W |
| ErP Lot 3/6 Ready | ✓ | |
| (EU) No 617/2013 Compliance | ✓ | |
| Average Efficiency VSB | 77.893% | 77.193% |
| Voltage | 115V | 230V |
|---|---|---|
| Noise Rating (>1450 Load Combinations) | 25.89dBA | 24.69dBA |
| Noise Graphs | ![]() | ![]() |
| Efficiency With 10W (≤500W) or 2% (>500W) Load | 63.160% |
| Hold Up Time | 26.40ms |
| Power OK | 23.30ms |
| Power OK to DC Loss | 3.10ms |
| Test\Rail | +12V | 5V | 3.3V | 5VSB |
| 100ms | 11.959 | 5.023 | 3.298 | 5.047 |
| 10ms | 11.695 | 4.993 | 3.249 | 5.033 |
| 1ms | 11.582 | 4.981 | 3.227 | 5.025 |
| 0.1ms | 11.469 | 4.968 | 3.205 | 5.021 |
| Product Identification Details | |
| Brand | Super Flower |
| Model | Leadex III 850W (SF-850F14PE) |
| OEM | Super Flower |
| Serial Number | S2508199008 |
| Product Specifications | |
| Manufacturer | |
| Rated Voltage (Vrms) | 100-240 |
| Rated Current (Arms) | 10 |
| Rated Frequency (Hz) | 50-60 |
| Rated Power (W) | 850 |
| Operating Temperature (Continuous Full Load) (°C) | |
| Type | ATX12V |
| Cable Design | Fully Modular |
| Warranty | |
| Cybenetics | |
| Dimensions (W x H x D) | |
| Weight | |
| Cooling | 140mm Sleeve Bearing Fan (ZFH142512M) |
| Semi-Passive Operation | ✓ (selectable) |
| Cybenetics Testing Information | |
| Lab ID | SF85002965 |
| Date of receipt | Aug 26, 2025 |
| Testing Date | Sep 17, 2025 |
| Report Issued Date | Sep 18, 2025 |
| Engineer Name | Ioannis Kalyviotis |
| Authorized By the Laboratory Technical Manager | Aristeidis Bitziopoulos |
| Signature | ![]() |
| Modular Cables | ||||
| Description | Cable Count | Connector Count (Total) | Gauge | Cable Type |
| ATX connector 20+4 pin (590mm) | 1 | 1 | 18-20AWG | Tinned Copper |
| 4+4 pin ATX12V (700mm) | 2 | 2 | 18AWG | Tinned Copper |
| 6+2 pin PCIe (600mm+150mm) | 1 | 2 | 18AWG | Tinned Copper |
| 6+2 pin PCIe (600mm) | 1 | 1 | 16AWG | Tinned Copper |
| 12+4 pin PCIe (600mm) (600W) | 1 | 1 | 16-26AWG | Tinned Copper |
| SATA (500mm+150mm+150mm+150mm) | 1 | 4 | 18AWG | Tinned Copper |
| SATA (500mm+150mm) / 4-pin Molex (+150mm+150mm) | 1 | 2 / 2 | 18AWG | Tinned Copper |
| AC Power Cord (1370mm) - C13 coupler | 1 | 1 | 18AWG | - |
| Over Voltage Protection | ✓ |
| Under Voltage Protection | ✓ |
| Over Power Protection | ✓ |
| Over Current (+12V) Protection | ✓ |
| Over Temperature Protection | ✓ |
| Short Circuit Protection | ✓ |
| Surge Protection | ✓ |
| Photos | ![]() | ![]() |
| Top side | Power specifications label |
F.1 General Statement
Measurement uncertainty associated with the reported results was evaluated and estimated in accordance with JCGM 100:2008 (Guide to the Expression of Uncertainty in Measurement — GUM) and ISO/IEC 17025:2017, Clauses 7.6 and 7.2.
The uncertainty budget accounts for all significant identified contributors arising from the measurement process, instrumentation, test conditions, and operator interaction.
The reported expanded uncertainty U is obtained by multiplying the combined standard uncertainty uc by a coverage factor k = 2, corresponding to a confidence level of approximately 95 %, assuming a normal probability distribution.
Unless otherwise stated, the reported uncertainty applies only to the specific measurements performed and does not include long-term drift, aging effects, or future environmental changes.
F.2 Expanded Measurement Uncertainty by Measurement Type
| Measurement | Expanded Uncertainty U (k=2, norm) |
| Efficiency | ±0.18% |
| Timings | ±0.48ms |
| Power Excursions (Transient Response) | ±0.1V |
| Conducted EMI Emissions (150 kHz – 30 MHz) | ±2.35 dBμV |
| Noise Output | ±1.23 dB |