Key Specifications
Choose one or multiple features to search for items that have the same specifications.| Ports & interfaces | |
| PCI Express connector | ![]() |
| Motherboard power connector | 20+4 pin ATX |
| Number of SATA power connectors | 8 |
| Peripheral (Molex) power connectors (4-pin) | 1 |
| EPS power connector (8-pin) | ![]() |
| ATX power connector (20+4 pin) | ![]() |
| PCI Express power connectors (8-pin) | 3 |
| CPU power connector (4+4 pin) | ![]() |
| PCI Express power connectors (6+2 pin) | 2 |
| Cabling type | Fully-Modular |
| Motherboard power cable length | 60 cm |
| SATA power cable length | 400,550,700,850 mm |
| CPU power cable length | 70 cm |
| Peripheral (Molex) power cable length | 400,550,700,850 mm |
| PCI Express power cable length | 55 cm |
| EPS power connector (4+4 pin) | ![]() |
| PCI Express power connectors (16-pin) | 2 |
| Weight & dimensions | |
| Height | 86 mm |
| Width | 150 mm |
| Depth | 140 mm |
| Energy management | |
| Input current | 7.5 - 14.8 A |
| Nominal power | 1200 W |
| Efficiency | 92% |
| Power protection features | Over current, Over voltage, Overcharge, Overdischarge, Overheating, Short circuit, Surge & inrush protection (SIP), Under voltage |
| Power factor | 0.95 |
| Power Factor Correction (PFC) type | Active |
| Combined power (+3.3V) | 100 W |
| Combined power (+12V) | 1200 W |
| Combined power (+5V) | 100 W |
| Combined power (-12V) | 3.6 W |
| Combined power (+5Vsb) | 15 W |
| Max output current (+3.3V) | 20 A |
| Max output current (+12V) | 100 A |
| Max output current (+5V) | 20 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| AC input frequency | 50/60 Hz |
| AC input voltage | 100 - 240 V |
| Total power | 1200 W |
| Certificates | |
| RoHS compliance | ![]() |
| 80 PLUS certification | 80 PLUS Platinum |
| Compliance certificates | RoHS |
| Design | |
| Product colour | White |
| Illumination | ![]() |
| Number of fans | 1 fan(s) |
| On/off switch | ![]() |
| Fan diameter | 12 cm |
| Fan speed | 2000 RPM |
| Performance | |
| Mean time between failures (MTBF) | 100000 h |
| Form factor | ATX |
| Purpose | PC |
| Bearing technology | FDB |
| ATX version | 3.1 |
| Silent mode | ![]() |
| Power supply unit (PSU) form factor | ATX |
| EAN | 4718466021304 |
The LIAN LI SX1200P is a fully modular ATX power supply delivering 1200W of continuous power, designed for high-performance computing systems. It is engineered to meet ATX 3.1 and PCIe 5.1 specifications, ensuring stable power delivery for current-generation processors and graphics cards, including those requiring a 12V-2x6 connector. The unit holds an 80 PLUS Platinum certification, which corresponds to high operational efficiency and reduced heat output across various load levels. Active Power Factor Correction further contributes to stable and clean power regulation.
Internally, this power supply utilizes Japanese capacitors to support long-term reliability and consistent performance under demanding conditions. A 120 mm fan provides active cooling and features a zero RPM mode, which deactivates the fan under low loads to minimize operational noise. The fully modular design allows users to connect only the necessary cables, simplifying cable management and promoting better airflow within the system chassis. The unit's white finish and cables provide a clean aesthetic for builds with a corresponding color scheme.
Key Features:- Provides 1200W of continuous power
- Features 80 PLUS Platinum efficiency certification
- Complies with ATX 3.1 and PCIe 5.1 standards
- Offers a fully modular cabling system
- Equipped with a 120 mm fan with a zero RPM mode
- Includes a native 12V-2x6 power connector
- Provides eight SATA power connectors
- Incorporates over-current, over-voltage, and short-circuit protections
- Measures 150mm x 86mm x 140mm
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