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Zalman GigaMax 600W ATX Power Supply 80+ Plus Certified PSU – Reliable ATX 12V PSU with 105°C Capacitors, Low Noise 120mm Quiet HDB Fan, Active PFC, 6+2 PCIe Connectors, RoHS Compliant, Non-Modular | 105°C Capacitors, Low Noise 120mm Quiet HDB Fan, Active PFC, 6+2 PCIe Connectors, RoHS Compliant, Non-Modular
Zalman

Zalman GigaMax 600W ATX Power Supply 80+ Plus Certified PSU

Bottom line: The Zalman GigaMax 600W ATX Power Supply 80+ Plus Certified PSU ($57.99 on Amazon as of 2026-10-06): 80 Plus Bronze rated, up to 87% efficiency at 100% load on 115-240VAC; main trade-off: non-modular, so all six SATA and three IDE leads stay attached.

$57.99

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Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 80 Plus Bronze rated, up to 87% efficiency at 100% load on 115-240VAC
  • ✓ Two 6+2-pin PCIe connectors feed a dual-connector GPU without adapters
  • ✓ 105C-rated capacitors hold voltage stable under sustained high-load runs
  • ✓ Active PFC hits a 99% power factor for cleaner draw from the wall

Cons

  • ✗ Non-modular, so all six SATA and three IDE leads stay attached
  • ✗ 600W ceiling rules out a 4080/4090-class build
  • ✗ Bronze, not Gold or Platinum, so idle efficiency trails pricier units
  • ✗ Sleeve-bearing 120mm fan is shorter-lived than fluid or ball bearing designs

SpecPicks Verdict

SpecPicks scored Zalman GigaMax 600W ATX Power Supply 80+ Plus Certified PSU using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies & cables category. Zalman's power supplies & cables lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power supplies & cables of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Superior Efficiency: Certified 80+ Bronze up to 87% efficiency with 100% load rates (115-240VAC), reducing overall system power consumption and heat generated.
  • Stable Output: Active PFC system with maximum power factor of 99%, providing consistent and stable energy outputs. 105° capacitor ensures stability even at high voltage.
  • Clean Black Cables: All black cables to match your other components, with sleeved motherboard connector to help with cable management.
  • Quiet Operation: Silent 120mm fan with sleeved bearing for smooth and quiet operation.
  • Guaranteed protection with 5 Year Manufacturer Warranty.
  • Included Cables: Mainboard (20+4) Pin Connector x 1, CPU 8Pin+4Pin Connector x 1, PCI (6+2)Pin Connector x 2, S-ATA Connector x 6, IDE Connector x 3, FDD Connector x 1

Full Specifications

BrandZalman
Wattage600 watts
Fan Size120 Millimeters
Model NameGVII-A
Form FactorATX
Model NumberZM600-GVII-A
Connector TypeATX
Cooling MethodAir
Item Type Namecomputer-internal-power-supplies
Number of Fans1
Output Wattage600 Watts
Included CablesMainboard (20+4) Pin Connector x 1, CPU 8Pin+4Pin Connector x 1, PCI (6+2)Pin Connector x 2, S-ATA Connector x 6, IDE Connector x 3, FDD Connector x 1
Item Dimensions5.5 x 3.4 x 5.9 inches
Mfr Part NumberP-ZM600-GVII-A-FBA
Quiet OperationSilent 120mm fan with sleeved bearing for smooth and quiet operation.
Package IncludesPower supply unit, cable ties, power cord, user manual, screws
Clean Black CablesAll black cables to match your other components, with sleeved motherboard connector to help with cable management.
Compatible DevicesATX, Computer, Desktop, Windows
Power Supply DesignNon-Modular
Superior EfficiencyCertified 80+ Bronze up to 87% efficiency with 100% load rates (115-240VAC), reducing overall system power consumption and heat generated.
Full listing titleZalman GigaMax 600W ATX Power Supply 80+ Plus Certified PSU – Reliable ATX 12V PSU with 105°C Capacitors, Low Noise 120mm Quiet HDB Fan, Active PFC, 6+2 PCIe Connectors, RoHS Compliant, Non-Modular | 105°C Capacitors, Low Noise 120mm Quiet HDB Fan, Active PFC, 6+2 PCIe Connectors, RoHS Compliant, Non-Modular

Ready to buy?

Zalman GigaMax 600W ATX Power Supply 80+ Plus Certified PSU – Reliable ATX 12V PSU with 105°C Capacitors, Low Noise 120mm Quiet HDB Fan, Active PFC, 6+2 PCIe Connectors, RoHS Compliant, Non-Modular | 105°C Capacitors, Low Noise 120mm Quiet HDB Fan, Active PFC, 6+2 PCIe Connectors, RoHS Compliant, Non-Modular is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $57.99

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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