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Compare Lian Li SP Platinum 850W vs PC Power & Cooling ZT Series 550W

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  3. Lian Li SP Platinum 850W 🆚 PC Power & Cooling ZT Series 550W
Lian Li SP Platinum 850W and PC Power & Cooling ZT Series 550W are both power supplies with the same Modular (Full). The main differences are in Wattage, Efficiency, PCI-Express 16 Pin 12VHPWR Connectors and PCI-Express 6+2 Pin Connectors.
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Lian Li SP Platinum 850W SFX 12V-2x6 Connectors ATX 3.1 & PCIE 5.1 Fully Modular 105°C Capacitors 10 Year Warranty Black (SP0850P.B)
Lian Li SP Platinum 850W
PC Power & Cooling ZT Series 550W 80+ Bronze Fully-Modular OCZ-ZT550W
PC Power & Cooling ZT Series 550W
Prices
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In Stock
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$142.99 ($155.99)
$13.00 promotional gift card w/ purchase, limited offer
In Stock
$155.99
Last updated 43 minutes ago.
In Stock
$164.99
Prices
(Change region)
-
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Brand
Lian Li
Brand
PC Power & Cooling
Model
SP0850P.B
Model
OCZ-ZT550W
Release Date
📅 November 2025
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
850 W
Wattage
550 W
Type
SFX
Type
ATX
Modular
Full
Modular
Full
Efficiency
80+ Platinum
Efficiency
80+ Bronze
Output
-
Output
+3.3V@24A, +5V@24A, +12V@45A, -12V@0.5A, +5VSB@3A
PCI-Express 16 Pin 12VHPWR Connectors
1
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
3
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
5
SATA Connectors
6
Molex Connectors
2
Molex Connectors
6
Length
100 mm
Length
-

Comparison and key differences summary

Reasons to buy the Lian Li SP Platinum 850W:

  • +300 Watts available
  • Better 80 Plus efficiency
  • +1 PCI-Express 6+2 Pin connectors available
  • +1 EPS connectors available

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Reasons to buy the PC Power & Cooling ZT Series 550W:

  • +1 SATA connectors available
  • +4 Molex connectors available

Buy now

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