Customer: Cybenetics LTD
Syrou 6, Latsia, 2231, Nicosia Cyprus
Syrou 6, Latsia, 2231, Nicosia Cyprus
1050W
| 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) | 90.167% | 92.257% |
| Efficiency Graphs |  |  |
| Average PF (>1450 Load Combinations) | 0.991 | 0.965 |
| 12V Step | 10.00W | |
| 5V/3.3V Step | 2.00W | |
| Standby Power Consumption | 0.0211W | 0.1011W |
| ErP Lot 3/6 Ready | ✓ | |
| (EU) No 617/2013 Compliance | ✓ | |
| Average Efficiency VSB | 81.526% | 81.078% |
| Voltage | 115V | 230V |
|---|---|---|
| Noise Rating (>1450 Load Combinations) | 42.49dBA | 42.28dBA |
| Noise Graphs |  |  |
| Efficiency With 10W (≤500W) or 2% (>500W) Load | 61.010% |
| Hold Up Time | 20.40ms |
| Power OK | 18.20ms |
| Power OK to DC Loss | 2.20ms |
| Test\Rail | +12V | 5V | 3.3V | 5VSB |
| 100ms | 12.001 | 4.960 | 3.246 | 4.965 |
| 10ms | 11.750 | 4.929 | 3.201 | 4.940 |
| 1ms | 11.627 | 4.912 | 3.177 | 4.925 |
| 0.1ms | 11.454 | 4.875 | 3.144 | 4.910 |
| Product Identification Details | |
| Brand | YESTARRY |
| Model | 1050W |
| OEM | Boluo Xurong Electronics |
| Serial Number | - |
| Product Specifications | |
| Manufacturer | |
| Rated Voltage (Vrms) | 100-240 |
| Rated Current (Arms) | 6.5-13 |
| Rated Frequency (Hz) | 50-60 |
| Rated Power (W) | 1050 |
| Operating Temperature (Continuous Full Load) (°C) | 0 - 50 |
| Type | ATX12V |
| Cable Design | Fully Modular |
| Warranty | No info |
| Cybenetics | |
| Dimensions (W x H x D) | 150 x 85 x 150mm |
| Weight | 1.61 kg (3.55 lb) |
| Cooling | 140mm Double Ball-Bearing Fan (D14BH-12) |
| Semi-Passive Operation | ✓ |
| Cybenetics Testing Information | |
| Lab ID | YS10503235 |
| Date of receipt | Feb 18, 2026 |
| Testing Date | Apr 3, 2026 |
| Report Issued Date | Apr 7, 2026 |
| 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 (555mm) | 1 | 1 | 18-22AWG | Tinned Copper |
| 4+4 pin EPS12V (650mm) | 2 | 2 | 18AWG | Tinned Copper |
| 6+2 pin PCIe (650mm) | 3 | 3 | 18AWG | Tinned Copper |
| 12+4 pin PCIe (460mm) (600W) | 1 | 1 | 16-24AWG | Tinned Copper |
| SATA (350mm+155mm) / 4-pin Molex (+155mm) | 2 | 4 / 2 | 18AWG | Tinned Copper |
| Over Power Protection | ✓ |
| Over Current (+12V) Protection | ✓ |
| Over Temperature Protection | ✓ |
| Short Circuit Protection | ✓ |
| Surge Protection | ✓ |
| Inrush Current Protection | ✓ |
| Fan Failure Protection | ✗ |
| General Data | |
| Manufacturer (OEM) | Boluo Xurong Electronics |
| PCB Type | Double-Sided |
| Primary Side | |
| Transient Filter | 2x Y caps, 2x X caps, 2x CM chokes, 1x MOV |
| Inrush Protection | NTC Thermistor MF73T-1 5/8 (5 Ohm @ 25°C) & Relay |
| Bridge Rectifier | 2x GBU15J (600V, 15A @ 100°C) |
| APFC MOSFETs | 1x Onsemi NVHL040N65S3F (650V, 45A @ 100°C, Rds(on): 0.040 Ohm) |
| APFC Boost Diode | 1x HX1D16065F (650V @ 100°C) |
| Bulk Cap(s) | 2x Nippon Chemi-con (420V, 470uF, 2000h @ 105°C, KMQ ) |
| Main Switchers | 2x Onsemi NVHL040N65S3F (650V, 45A @ 100°C, Rds(on): 0.040 Ohm) |
APFC Controller | Aplustek AT6101ZSPC |
| Resonant Controller | Aplustek AT6301ZTSF |
| Topology | Primary side: APFC, Half-Bridge & LLC Resonant Converter Secondary side: [12V] Synchronous Rectification & [Minor Rails] DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | 8x |
| 5V & 3.3V | DC-DC Converters: 2x Fet A3056 (30V, 90A @ 70°C, Rds(on): 1.8 mOhm) PWM Controller(s): 2x Aplustek AT8853ZSPC |
| Filtering Capacitors | Electrolytic: |
| Supervisor IC | Grenergy GR8323 (OVP, UVP, OCP, PG) |
| Fan Controller / Micro Controller | 1x |
| Fan Model | Yate Loon Electronics D14BH-12 (140mm, 12V, 0.70A, Dual Ball Bearing Fan) |
| 5VSB Circuit | |
| Rectifier | Dongke DK5V60R15S (60V, 15 mOhm) |
| Standby PWM Controller | Aplustek AT6002HSP8 |
| 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 |