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Zalman GigaMax GV II ZM550-GVII

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Outdated Product
Power: 550; Cooling system: active (fan); MB/CPU power supply: 24+8 (4+4); Manufacturer's warranty: 5 years;
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Zalman GigaMax GV II [ZM550-GVII]
Zalman GigaMax GV II ZM550-GVII
Main
Power550 W
Form factorATX
Specs
PFCactive
Efficiency88 %
Cooling systemactive (fan)
Fan size120 mm
Fan bearinghydrodynamic
Certification80+ Bronze
ATX12V version2.31
Power connectors
MB/CPU power supply24+8 (4+4) pin
SATA5
MOLEX3
PCI-E 8pin (6+2)2
Floppy
Cable systemnon-modular
Cable length
MB500 mm
CPU650 mm
SATA450 mm
MOLEX450 mm / 750 /
PCI-E500 mm
Max. power
+3.3V18 А
+5V15 А
+12V145 А
-12V0.3 А
+5Vsb2.5 А
+12V540 W
+3.3V +5V100 W
-12V3.6 W
+5Vsb12.5 W
General
Over voltage protection (OVP)
Over power protection (OPP)
Short circuit protection (SCP)
ProtectionOCP, OTP, UVP
Noise level25 dB
Manufacturer's warranty5 years
Dimensions (HxWxD)86x150x140 mm
Weight1.95 kg
Official Websitezalman.com
Added to E-Catalogmarch 2020
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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Video reviews

Energy-Efficient Recipe

The Zalman GigaMax ZM550-GVII power supply combines proven technologies to provide stable and reliable power for entry-level and mid-range PCs. With 540W on the +12V rail, it is sufficient for the full operation of a system, whether for media content work, gaming, design, code compilation, or animation creation. Compliance with international standards is confirmed by the 80+ Bronze certification and a five-year manufacturer warranty. Active PFC boosts efficiency up to 88%, minimizing energy loss and heat emission. An additional DC-DC circuit ensures stable 12V, and a comprehensive set of protective mechanisms (OTP, OCP, UVP, OVP, OPP, SCP) prevent any risks, although the Surge and Inrush protection (SIP) system is missing. High-temperature capacitors resistant to stress are used for enhanced reliability, and an electromagnetic filter at the input reduces noise levels.

Quiet Rotation

This model does not feature an automatic fan speed control system (AFC), so the fan operates at constant speeds, producing a moderate noise level within 25 dB. The fan uses a hydrodynamic bearing with a claimed lifespan of up to 50,000 hours. The chassis design is optimized for effective airflow, aiding in cooling components. Flexible flat black cables make routing through hidden spaces easier and help organize the internal space of the system unit. However, compared to similar models from other brands, the power supply's price remains relatively high.

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