SilverStone introduces a new SFX-L power supply capable of continuously supplying 1,200W - the Extreme 1200R Platinum . The power supply has enough juice to power the most power-hungry, such as the GeForce RTX 4090 , one of the best graphics cards on the market.
The Extreme 1200R Platinum is SilverStone's highest-rated SFX-L power supply, rated for Cybenetics Platinum. To summarize, Cybenetics' Platinum indicates the power supply is between 89% and 91% efficient. This compact PSU promises to supply 1,200W continuous output rated for 24/7 use with 50 degrees Celcius operating temperature and provides 100A through 12V rail. The SFX-L Extreme 1200R Platinum uses Japanese capacitors and all the protection expected from a high-grade power supply.
It complies with the SFX12V 4.1 standard and PCIe CEM 5 specification. SilverStone also includes the 12V-2x6 power connector by default, giving a more reliable connection than the 12VHPWR standard, hence avoiding burnout. This SFX-L power supply has a 120mm silent fan with fluid dynamic bearing.
As expected, such power supplies have all the connectors a user would ever need. The following is the complete specification:
| Product No | SST-EX1200R-PL |
|---|---|
| Model (safety certification) | SST-SL1200MCPT-A |
| Color | Black (lead-free paint) |
| Max. DC Output | 1200W |
| Power density | 969W/L |
| Combined +3.3V & +5V | 100W |
| Combined +12V | 1200W |
| Input Voltage | 90 ~ 264 Vrms |
| Input Frequency Range | 47Hz ~ 63Hz |
| PFC | Active PFC (PF>0.9 at full load) |
| Efficiency | 89% ~ 91% overall efficiency |
| MTBF | 100,000 hours |
| Protection | Over Current Protection/ Over Power Protection/ Over Voltage Protection/ Short Circuit Protection/ Over Temperature Protection |
| Connectors | 1 x 24 / 20-Pin motherboard connector |
| Row 13 - Cell 0 | 2 x 8 / 4-Pin EPS / ATX 12V connectors |
| Row 14 - Cell 0 | 4 x 8 / 6-Pin PCIe connectors |
| Row 15 - Cell 0 | 1 x 12+4-Pin 12V-2x6 connector |
| Row 16 - Cell 0 | 8 x SATA connectors |
| Row 17 - Cell 0 | 3 x 4-Pin Peripheral connector |
| Row 18 - Cell 0 | 1 x 4-Pin Floppy connector |
| Cooling System | Silent 120mm FDB fan |
| Form factor | SFX-L |
| Noise Level | 0 ~ 36 dBA |
| Dimension | 125mm (W) x 63.5mm (H) x 130mm (D) |
| Weight | 1.39 kg |
| Certification | Cybenetics Platinum |
The Extreme 1200R Platinum has a five-year warranty. No pricing or launch date is mentioned, though it will likely be available just in time for the RTX 40 Super series graphics cards. It's not a moment too soon, as some have already started shifting to newer ATX standards while providing 12V-2x6 cable. FSP has been including this connector standard for a few months , and Seasonic has its way of assuring its users that the 12V-2x6 is perfectly fine.
With small form factors becoming more popular, even with flagship graphics cards, the Extreme 1200R Platinum will likely cater to compact but powerful SFF builds.