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 |
| Design | |
| Product colour | Black |
| 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 | 4718466021229 |
The Lian Li SX1200P is a 1200W power supply designed for high-performance systems requiring stable power delivery. It meets the ATX 3.1 standard and is built for PCIe 5.1 compatibility, ensuring it can support current-generation graphics cards and motherboards. The unit's 80 PLUS Platinum certification indicates high energy efficiency, which results in reduced heat output and lower power consumption under typical loads. Its internal architecture is structured to handle the demands of multi-GPU configurations and power-intensive processors used in gaming or workstation builds.
This PSU features a fully modular cabling system, allowing users to connect only the necessary cables for improved airflow and a cleaner internal layout. The enclosure adheres to the standard ATX form factor with a depth of 140mm, facilitating installation in a wide range of mid-tower and full-tower cases. Cooling is managed by a 120mm fan that operates with a semi-passive hybrid mode, remaining idle during low power draw to minimize noise. A comprehensive suite of protection circuits, including overvoltage, overcurrent, and short-circuit protection, is integrated to safeguard connected components.
Key Features:- 1200W total power output
- 80 PLUS Platinum efficiency certification
- Standard ATX power supply form factor
- Fully modular design for custom cable management
- Features one 12V-2x6 and multiple PCIe connectors
- 120mm fan with a semi-passive cooling mode
- Active Power Factor Correction (PFC)
- Includes OCP, OVP, OTP, OPP, SCP, UVP, and SIP protections
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