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Design
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Specification
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Litepower 400W
- Complies with latest ATX 12V V2.3 Standard for utmost reliability and compatibility
- High current single +12V rail for best compatibility.
- Ultra-quiet 120mm cooling fan delivers excellent airflow.
- Extra long EPS/ATX 12V 4+4pin CPU cable support full tower chassis.
- Intel & AMD CPU compliant.
- Nvidia & ATI/AMD graphic card compatible.
- Dimension (W/H/D): 150mm x 85.1mm x 141mm.
- High reliability: MTBF>100,000 hours.
- Built-in industry grade protections: Over Voltage, Over Power and Short-Circuit protection
- Safety / EMI Approvals: TUV, CE, GOST

Fan Speed & Noise Level

Output Specification
| AC INPUT | Input Voltage: 230Vac | ||||
| DC OUTPUT | +3.3V | +5V | +12V | -12V | +5Vsb |
| Max Output Current | 20A | 18A | 27A | 0.3A | 2.5A |
| Max Output Power | 130W | 324W | 3.6W | 12.5W | |
| Total Power | The +3.3V & +5V & +12V combined output power shall not exceed 385W. | ||||
Total Protection
| Voltage Source | Over Voltage Protection Protection Point | ||||
| +3.3V | 4.3 Vmax. | ||||
| +5V | 7.0 Vmax. | ||||
| +12V | 15.6 Vmax. | ||||
Short Circuit Protection: An output short circuit is defined as any output impedance of less than 0.1 ohms. The power supply shall shut down and latch off for shorting the +3.3 VDC, +5 VDC, +12 VDC rails to return or any other rail.
Over Power Protection: The power supply shall be shut down and latch off, if the wattage of the power supply is higher from 130% to 160%。
Total Output Connector
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Product Specifications
| P/N | LT-400 |
|---|---|
| Model | LT-400NL2NL |
| Type | ATX 12V 2.3 |
| Form Factor | ATX |
| Max Output Capacity | 400W |
| Peak Output Capacity | Black |
| Color | Black |
| Dimensions | 150mm x 85.1mm x 141mm |
| PFC (Power Factor Correction) | W/O PFC |
| Power Good Signal | “Power Good” signal rise time is within 1ms. |
| Hold Up Time | The power supply with 80% of Max. load at 230 Vac, 50 Hz should supply regulated DC outputs for at least 16 ms after the loss of the AC input voltage at zero cross. |
| Input Current | 6A |
| Input Frequency Range | 50Hz |
| Input Voltage | 230Vac |
| Started Voltage | To 95% relative humidity |
| Operating Temperture | 10℃~+40℃ |
| Operating Humidity | To 85% relative humidity |
| Storage Temperture | -20℃~+70℃ |
| Storage Humidity | 120mm Fan: 1600-1900 RPM |
| Cooling System | 120mm Fan: 1600-1900 RPM |
| Efficiency | 70% typical at nominal line, maximum load. |
| MTBF | 100,000 hrs minimum |
| Safety Approval | TUV, CE, Gost |
| PCI-E 6+2PIN | 6+2pin PCI-E Connector x 2 |





