Compare Power Supplies

Compare Seasonic FOCUS PX-550 vs PRIME 550

  1. Compare
  2. Power Supplies
  3. Seasonic FOCUS PX-550 🆚 Seasonic PRIME 550
Seasonic FOCUS PX-550 and Seasonic PRIME 550 are both power supplies with the same Wattage (550 W), Modular (Full) and PCI-Express 6+2 Pin Connectors (2). The main differences are in Efficiency, EPS Connectors and SATA Connectors.
Save comparison
Seasonic FOCUS PX-550 550W 80+ Platinum Full-Modular SSR-550PX
Seasonic FOCUS PX-550
Seasonic PRIME 550 SSR-550GD2 550W 80+ Gold ATX12V & EPS12V Full Modular
Seasonic PRIME 550
Prices
(Change region)
Out of Stock
+ $5.99 Shipping
$139.99
Out of Stock
Free shipping
$189.00
-
Buy now
Prices
(Change region)
-
Buy now
* Pangoly may earn a commission when you use one of the links to make a purchase. (Disclosure)
* Product prices and availability are subject to change frequently. Any price and availability information displayed on Amazon at the time of purchase will apply.
Brand
Seasonic
Brand
Seasonic
Model
FOCUS-PX-550
Model
SSR-550GD2
Release Date
📅 August 2019
Release Date
-
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
Price history
View Details ►
Price history
View Details ►
Compatible PC parts
Graphics Cards ► Cases ►
Compatible PC parts
Graphics Cards ► Cases ►
Wattage
550 W
Wattage
550 W
Type
ATX
Type
ATX
Modular
Full
Modular
Full
Efficiency
80+ Platinum
Efficiency
80+ Gold
PCI-Express 16 Pin 12VHPWR Connectors
0
PCI-Express 16 Pin 12VHPWR Connectors
0
PCI-Express 12 Pin Connectors
0
PCI-Express 12 Pin Connectors
0
PCI-Express 6+2 Pin Connectors
2
PCI-Express 6+2 Pin Connectors
2
PCI-Express 6 Pin Connectors
0
PCI-Express 6 Pin Connectors
0
EPS Connectors
2
EPS Connectors
1
SATA Connectors
10
SATA Connectors
6
Molex Connectors
3
Molex Connectors
3
Length
140 mm
Length
140 mm

Comparison and key differences summary

Reasons to buy the Seasonic FOCUS PX-550:

  • Better 80 Plus efficiency
  • +1 EPS connectors available
  • +4 SATA connectors available

Buy now

Reasons to buy the Seasonic PRIME 550:

Buy now

Have you found incorrect information on this page? Contact us and we will fix it as soon as possible.

Trending comparisons (Power Supplies)

CORSAIR RM850e (2025)
VS
MSI MAG A850GL PCIE 5
CORSAIR RM850e (2025)

vs

MSI MAG A850GL PCIE 5
be quiet! Pure Power 13 M 1000W
VS
CORSAIR RMx Series RM1000x (2024)
be quiet! Pure Power 13 M 1000W

vs

CORSAIR RMx Series RM1000x (2024)
Lian Li EDGE GOLD 850W
VS
MSI MAG A850GL PCIE 5
Lian Li EDGE GOLD 850W

vs

MSI MAG A850GL PCIE 5
Corsair RM850e
VS
Corsair RM850x
Corsair RM850e

vs

Corsair RM850x
MSI MAG A750GLS PCIE5
VS
MSI MAG A750GL PCIE 5
MSI MAG A750GLS PCIE5

vs

MSI MAG A750GL PCIE 5
be quiet! Dark Power 14 850W
VS
SeaSonic VERTEX PX-850
be quiet! Dark Power 14 850W

vs

SeaSonic VERTEX PX-850
CORSAIR HX1500i 2025
VS
EVGA SuperNOVA 1000 G3 80 Plus Gold 1000W
CORSAIR HX1500i 2025

vs

EVGA SuperNOVA 1000 G3 80 Plus Gold 1000W
CORSAIR RMx Series RM850x (2024)
VS
CORSAIR RMx Series RM1000x (2024)
CORSAIR RMx Series RM850x (2024)

vs

CORSAIR RMx Series RM1000x (2024)
be quiet! Pure Power 13 M 850W
VS
Cooler Master MWE 750 Bronze V2
be quiet! Pure Power 13 M 850W

vs

Cooler Master MWE 750 Bronze V2
be quiet! Pure Power 13 M 850W
VS
be quiet! Power Zone 2 850W
be quiet! Pure Power 13 M 850W

vs

be quiet! Power Zone 2 850W
    News
    Discover how NVIDIA's new RTX Spark superchip challenges Intel x86 and Apple Silicon with 1 Petaflop of local AI power and massive Blackwell graphics.
    NVIDIA RTX Spark: A New Threat to Intel x86 and Apple Chips
    Browse PC Parts
    Spotlight
    $550
    F5-6800J3445G16GX2-RM5RK
    G.SKILL Ripjaws M5 RGB 32GB (2 x 16GB) DDR5 6800
    Trending PC Parts
    x