Customer: Cybenetics LTD
Syrou 6, Latsia, 2231, Nicosia Cyprus
Syrou 6, Latsia, 2231, Nicosia Cyprus
B750
| 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) | 85.760% | 88.206% |
| Efficiency Graphs |  |  |
| Average PF (>1450 Load Combinations) | 0.988 | 0.951 |
| 12V Step | 7.00W | |
| 5V/3.3V Step | 2.00W | |
| Standby Power Consumption | 0.0585W | 0.1763W |
| ErP Lot 3/6 Ready | ✓ | |
| (EU) No 617/2013 Compliance | ✓ | |
| Average Efficiency VSB | 77.920% | 75.656% |
| Conducted Emissions EN55032 & CISPR 32 (48W) | Passed | |
| Conducted Emissions Graphs |  |  |
| Voltage | 115V | 230V |
|---|---|---|
| Noise Rating (>1450 Load Combinations) | 39.14dBA | 39.16dBA |
| Noise Graphs |  |  |
| Efficiency With 10W (≤500W) or 2% (>500W) Load | 62.163% |
| Hold Up Time | 19.40ms |
| Power OK | 18.00ms |
| Power OK to DC Loss | 1.40ms |
| Test\Rail | +12V | 5V | 3.3V | 5VSB |
| 100ms | 11.900 | 4.980 | 3.231 | 5.064 |
| 10ms | 11.537 | 4.959 | 3.197 | 5.034 |
| 1ms | 11.383 | 4.950 | 3.180 | 5.026 |
| 0.1ms | 11.223 | 4.943 | 3.156 | 5.047 |
| Product Identification Details | |
| Brand | SAMA |
| Model | B750 |
| OEM | RSY |
| Serial Number | XMBB07525112000494 |
| Product Specifications | |
| Manufacturer | |
| Rated Voltage (Vrms) | 100-240 |
| Rated Current (Arms) | 6-10 |
| Rated Frequency (Hz) | 50-60 |
| Rated Power (W) | 750 |
| Operating Temperature (Continuous Full Load) (°C) | 0 - 40 |
| Type | ATX12V |
| Cable Design | Fixed cables |
| Warranty | 3 Years |
| Cybenetics | |
| Dimensions (W x H x D) | 150 x 85 x 140mm |
| Weight | 1.57 kg (3.46 lb) |
| Cooling | 120mm Sleeve Bearing Fan (S1202512L) |
| Semi-Passive Operation | ✗ |
| Cybenetics Testing Information | |
| Lab ID | SM75003186 |
| Date of receipt | Feb 2, 2026 |
| Testing Date | Mar 5, 2026 |
| Report Issued Date | Mar 11, 2026 |
| Engineer Name | Ioannis Kalyviotis |
| Authorized By the Laboratory Technical Manager | Aristeidis Bitziopoulos |
| Signature |  |
| Captive Cables | ||||
| Description | Cable Count | Connector Count (Total) | Gauge | Cable Type |
| ATX connector 24 pin (560mm) | 1 | 1 | 18-22AWG | Tinned Copper |
| 4+4 pin EPS12V (700mm+150mm) | 1 | 2 | 18AWG | Tinned Copper |
| 6+2 pin PCIe (560mm) | 1 | 1 | 18AWG | Tinned Copper |
| 6+2 pin PCIe (560mm+150mm) | 1 | 2 | 18AWG | Tinned Copper |
| 12+4 pin PCIe (600mm) (450W) | 1 | 1 | 16-24AWG | Tinned Copper |
| SATA (500mm+150mm+150mm) / 4-pin Molex (+150mm) | 2 | 6 / 2 | 18AWG | Tinned Copper |
| Modular Cables | ||||
| AC Power Cord (1350mm) - C13 coupler | 1 | 1 | 18AWG | - |
| 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) | RSY |
| PCB Type | Double-Sided |
| Primary Side | |
| Transient Filter | 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV |
| Inrush Protection | NTC Thermistor 2.5D-15 (2.5Ohm @ 25°C) & Relay |
| Bridge Rectifier | 1x - (600V, 30A @ 100°C) |
| APFC MOSFETs | 2x Shenzhen SI Semiconductors SIF15N65G2HP (650V, 15A @ 100°C, Rds(on): 0.09Ohm) |
| APFC Boost Diode | LiteOn LTTH806RFW (650V, 8A @ 100°C) |
| Bulk Cap(s) | 1x SC (420V, 330uF, @ 105°C, LT ) |
| Main Switchers | 2x Shenzhen SI Semiconductors SIF20N6502HP (600V, 20A @ 100°C, Rds(on): 0.15Ohm) |
APFC Controller | Texas Instruments UCC28180 & |
| Resonant Controller | Texas Instruments UCC25600 |
| IC Driver | - |
| Topology | Primary side: APFC, Half-Bridge & LLC Resonant Converter Secondary side: [12V] Synchronous Rectification & [Minor Rails] DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | 4x AGMSemi AGM1405C1 (40V, 130A @ 100°C, Rds(on): 3.2mOhm) |
| 5V & 3.3V | DC-DC Converters: 4x Leinuosemi LN035N030GP (30V, 91A @ 100°C, Rds(on): 4.0mOhm) PWM Controller(s): 2x Anpec APW7164 |
| Filtering Capacitors | Electrolytic: |
| Supervisor IC | Grenery GR8313 (OVP, UVP, OCP, PG) |
| Fan Controller / Micro Controller | Texas Instruments LM358 |
| Fan Model | Globe Fan S1202512L (120mm, 12V, 0.18A, Fluid Dynamic Bearing Fan) |
| 5VSB Circuit | |
| Rectifier | Shenzhen SI Semiconductors SIF4N70F |
| Standby PWM Controller | 583J25 IC |
| 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 |