Cooler Master is electrifying gamers PCs with GX 550W, GX 650W and GX 750W power supplies, specifically targeted at systems in the upper-mid to high-end range, yet reasonably priced, providing users with unsurpassed cost per performance. The Cooler Master GX Series of power supplies feature a single highly robust 12 V rail, proficiently delivering power to the most demanding components including the processor, drives, cooling fans and even the most intense dual graphic cards, such as the SLI or CrossFireX. Now including a double-layer EMI Filter, an intelligent 120 mm controllable fan and an active PFC/PWM combo controller for increased efficiency, the GX Series will keep the power in your hands.
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Single 12 V Power Rail
Tackling challenges from the most power-intensive peripherals head on, this solitary 12 V power rail provides ample power and strong resistance to any overloading.
Double-Layer EMI Filter
Dual protection from electromagnetic interference, thus restraining noise and interference for greater protection for you and your connections.
Intel Compliant
ATX12V v 2.3 and EPS version 2.91 compliant.
Intelligent Fan Speed Control
Speed control makes the 120 mm fan adept for any user’s circumstances and need.
Active PFC+ PWM Combo Controller
Integrating this active controller will increase the efficiency of any computer, making PFC higher than 99%.
Multiple Protection Design
Over Voltage Protection (OVP), Under Voltage Protection (UVP), Over Power Protection (OPP), Over Temperature Protection (OTP) and Short Circuit Protection (SCP).
Massive Bulk Capacitor
Producing hold times >17ms upon full loading.
Efficient Transformer
- Adeptly holding power for minimal loss in the 5V standby voltage so the system is promptly up and ready from power on or sleep modes
- Highly efficient design on par with 80Plus requirements (85% typical)
And More
- Multiple updated connectors for all types of interfaces (PCIe, SATA etc.)
- High reliability with an MBTF of at least 100,000 hours of use.
- NVIDIA SLI-Ready Certified guarantees enough ample power and up-to date connectors for SLI graphics cards.
- 5-Year limited warranty.
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| Model |
RS-550-ACAA-E3 |
| Type |
Intel Form Factor ATX 12V V2.31 |
| Dimension (W / H / D) |
150 x 140 x 86 mm
5.9 x 5.5 x 3.4 inch |
| Input Voltage |
90-264Vac (Auto Range) |
| Input Current |
7A@115Vac, 5@230Vac |
| Input Frequency Range |
47-63Hz |
| PFC |
Active PFC (>0.9) |
| Power Good Signal |
100~500ms |
| Hold Up Time |
>17ms |
| Efficiency |
85% typical |
| MTBF |
>100,000 hours |
| Protection |
OVP / UVP / OPP / OTP / SCP |
| Output Capacity |
550W |
| Max. Output Capacity |
660W |
| Operation Temperature |
0~40°C (Nominal Input Voltage) |
| Regulatory |
TUV / CE / UL / FCC / BSMI / GOST / C-tick / CCC / KCC |
| Fan |
120mm |
| Certifications |
80 PLUS |
| Connector |
20+4 Pin MB x 1
4+4 Pin CPU 12V x 1
6+2 Pin PCI x 2
SATA x 6
4 Pin Peripherial x 3
4 Pin Floppy x 1 |
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