Focus-plus-gold-002

FOCUS Plus 550 Gold

If you are looking for your next compact system build ideas, the FOCUS+ Gold 550 watt power supplies may be the ideal choice for you with their reliable and efficient power delivery, fully modular cables and efficiently regulated quiet operation. The high quality 120 mm Fluid Dynamic Bearing (FDB) fans are very quiet and proven to be very stable over the long run. When you couple these great FDB fans with Seasonic’s own Hybrid Silent Fan Control, then you have a power supply that outputs the least possible sound levels during operation.

SKU: SSR-550FX Categories: ,
80plus-gold 

80 PLUS®Gold

Seasonic was the forerunner of creating the very first 80 PLUS® Gold certified power supply on the market and since that time it has built a very popular Gold series lineup that covers a full power range of power supplies with impeccable performance and efficiency. The highly efficient 80 PLUS® Gold certification guarantees greater than 87 %, 90 % and 87 % efficiency at 20 %, 50 % and 100 % operating loads, respectively. The clear advantage of buying a power supply with 80 PLUS® Gold rating is the fact that the less energy gets wasted during power conversion, the lower the operating costs will be for the user.


Compact Size

This ultra-high power density, small footprint (140 mm depth) power supply is an ideal choice for all, especially compact ATX cases.



Fluid Dynamic Fan Bearing

High performance Fluid Dynamic Bearing (FDB) fans are designed to take advantage of the impact absorbance effects of oil. They are extremely reliable and generate considerably less operating noise and heat than ball bearing fans. The lubrication of the bearing surface reduces friction and vibration and therefore lowers overall power consumption. Due to the effortless, quieter rotations and its robust construction, this reliable fan technology also greatly increases the lifespan of the fan.

How it works

When the fan shaft rotates, high pressure oil drifts along the grooves of the bearing sleeve to generate a thin layer of lubrication between the bearing faces. As the speed increases, so does dynamic oil pressure and the shaft is lifted from the bearing to create smooth, effortless rotations. The herringbone shape of the groves helps to efficiently channel the lubricant and avert leakage.
The following illustration depicts the main characteristics of the FDB fans:

FDB

Fan Control S3FC-01

Hybrid Silent fan Control

The industry’s first, Seasonic patented, advanced three-phased thermal control achieves optimal between silence and cooling. This Hybrid Silent Fan Control functions in three operational stages: Fanless Mode, Silent Mode, and Cooling Mode.

S3FC

Benefits of this design

  • Reduced noise without increase in temperature;
  • Extended fan life due to the reduced number of fan rotations;
  • Optimized heat dissipation at all times;
  • Unsurpassed silent performance in Fanless Mode.

Additionally, there is a switch at the back of the power supply which allows users to customize their cooling needs by selecting between the Seasonic S2FC (fan control without Fanless Mode) and the S3FC (fan control including Fanless Mode).

The Fan Control Button

The fan control button can be found on the back of the back of the FOCUS PLUS power supply, next to the power switch. The image here illustrates how to select different fan control modes to suit your need.

focus-hybrid-button

Tight Voltage Regulation-01

Tight Voltage Regulation

Seasonic’s advanced design is to improve load regulation which reduces voltage variations to provide smooth and stable operations.


Cable-free Connection Design

Seasonic’s engineers have implemented a new design feature, where instead of cables; the back panel and the PCB (Printed Circuit Board) are connected by a copper plate. This breakthrough solution not only lowers the chance of production errors during manual insertion but it also improves output power quality.


10 Years Warranty

Our commitment to superior Seasonic quality.

Specifications are subject to change without prior notice.

FOCUS Plus 550 Gold
AC InputVoltage: 100 V - 240 V
Current: 8 - 4 A
Frequency: 50 Hz - 60 Hz
DC OutputRail+3.3 V+5 V+12 V-12 V+5 VSB
Maximum Power20 A20 A45 A0.3 A3 A
100 W540 W3.6 W15 W
Total continuous power550 W
FOCUS PLUS 550 Gold Technical Specifications
80PLUS®Gold
Form FactorIntel ATX 12 V
Dimensions150 mm (W) x 140 mm (L) x 86 mm (H)
Fan InformationFan Size120 mm
Fan ControlHybrid Silent fan Control
Fan BearingFluid Dynamic Bearing
Life Expectancy70,000 hours at 40 °C, 15 % - 65 % RH
Cable InformationModularityFully Modular
Cable typeFlat black cables
Electrical FeaturesOperating Temperature0 - 50 °C
MTBF @ 25 °C, excl. fan100,000 hours
AC InputFull Range
ProtectionOPP, OVP, UVP, OCP, OTP, SCP
Safety and EnvironmentalSafety and EMCcULus, TUV, CB, CCC, BSMI, EAC, RCM
Environmental ComplianceEnergy Star, RoHS, WEEE, ErP Lot 6, REACH
Warranty10 Years

Specifications may change without prior notice.

ConnectorConnector countCable countCable
Main Power (24/20 pins)11
CPU (8/4 pins)11
PCIe (8/6 pins)21
SATA61
1
Peripheral31
Floppy11

Specifications may change without prior notice.

User-Manual-01

Download datasheet

JonnyGURU | Recommended

August 21, 2017

“This unit was so far inside the mythic bracket for voltage regulation that I dont think anything else I can say could fully do it justice. The same goes for the unspeakably good ripple suppression on the minor rails”

(Read More)

FOCUS Plus 550 Gold
FOCUS Plus 550 Gold
FOCUS Plus 550 Gold
FOCUS Plus 550 Gold
FOCUS Plus 550 Gold