Enermax CYBERG II 650W ATX or Enermax MAXPRO IV 550W Non-Modular? Which Enermax Model to Buy
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
You are comparing the enermax cyberg ii 650 watt vs maxpro iv 550 watt to find the right non-modular ATX power supply. Both units feature 120 mm fans and black cables for clean builds. The main difference lies in their output capacity and modern standards. The CYBERG II offers 650 watts and ATX 3.1 compliance. The MAXPRO IV provides 550 watts with an 80 PLUS efficiency rating. This choice depends on your GPU power needs.
Key differences
| Aspect | Enermax CYBERG II 650W ATX 3.1 Power Supply | Enermax MAXPRO IV 550W Non-Modular PSU |
|---|---|---|
| Wattage | 650 W | 550 W |
| ATX Version | ATX 3.1 | ATX12V v2.4 |
| PCIe Connector | 12V-2x6 (PCIe 5.1) | not listed |
| Efficiency Rating | up to 90% | 80 PLUS |
| Warranty | not listed | 3 years |
| Weight | 2.51 pounds | 2.87 pounds |
Which one should you choose?
Choose Enermax CYBERG II 650W ATX 3.1 Power Supply if
- You need 650 watts for a high-end modern graphics card
- You want native PCIe 5.1 12V-2x6 support for latest GPUs
- You prefer a lighter unit that is easier to handle
Choose Enermax MAXPRO IV 550W Non-Modular PSU if
- You have an older system that does not require ATX 3.1
- You want a manufacturer warranty explicitly listed as 3 years
- You prioritize 80 PLUS certification for energy efficiency compliance
Verdict: The CYBERG II is the better choice for new builds with modern GPUs due to its higher wattage and ATX 3.1 standard. The MAXPRO IV suits users with older components who need a verified 80 PLUS efficiency rating and a stated warranty.
CYBERG II vs MAXPRO IV Specs
Wattage Output
The Enermax CYBERG II offers 650 watts of total power output, while the Enermax MAXPRO IV provides 550 watts. This 100-watt difference gives the CYBERG II more headroom for high-end components. You get a higher performance reserve with the CYBERG II, which supports sudden load surges better. The MAXPRO IV is sufficient for mid-range builds but offers less margin for future upgrades. If you plan to use a powerful graphics card, the extra wattage in the CYBERG II is a practical advantage for stability.
ATX Version
The CYBERG II complies with the ATX 3.1 standard, whereas the MAXPRO IV follows the older ATX12V v2.4 specification. ATX 3.1 is a newer standard that aligns with modern motherboard and component requirements. This means the CYBERG II is designed for current hardware architectures. The MAXPRO IV meets Intel design guides but lacks the latest ATX revisions. For a build focused on recent technology, the CYBERG II provides better compatibility with new standards.
PCIe Connector
The CYBERG II features a 12V-2x6 PCIe connector, supporting PCIe 5.1. This native connector is designed for modern graphics cards that require high power delivery. The MAXPRO IV data does not list a specific PCIe version or 12V-2x6 support. This means the MAXPRO IV likely relies on older connectors or adapters for newer GPUs. If you are installing a recent high-performance GPU, the CYBERG II offers a more direct and stable connection without needing extra adapters.
Efficiency Rating
The CYBERG II achieves up to 90% efficiency, contributing to reduced energy costs and carbon emissions. The MAXPRO IV holds an 80 PLUS certification with over 87% efficiency at 230VAC between 20 and 100% load. While both are efficient, the CYBERG II has a higher peak efficiency rating. The MAXPRO IV does comply with strict EU Ecodesign directives for standby power. For maximum energy savings during full load, the CYBERG II is slightly more efficient.
Warranty Coverage
The MAXPRO IV comes with a 3-year manufacturer warranty, which is explicitly stated in its specifications. The CYBERG II data does not mention a specific warranty period. A defined warranty term provides clear protection for your investment. Without a listed warranty for the CYBERG II, you cannot confirm the coverage length from the provided data. The MAXPRO IV offers a transparent warranty commitment, which is a practical advantage for long-term reliability assurance.
Weight and Build
The CYBERG II weighs 2.51 pounds, while the MAXPRO IV weighs 2.87 pounds. Both units share the same physical dimensions of 5.91 x 3.39 x 5.51 inches. The MAXPRO IV is slightly heavier, which may indicate different internal component densities. Both use non-modular designs with black cables for clean installations. The weight difference is minor and unlikely to affect case installation. Both offer similar physical footprints for standard ATX cases.
Choose Your Enermax Power Supply
Users with modern high-end GPUs
The CYBERG II supports ATX 3.1 and PCIe 5.1 standards. It includes a 12V-2x6 cable for direct GPU connection. This design handles power excursions up to 200%. You get 650 watts of output, which provides necessary headroom for sudden load spikes. This ensures stable performance for demanding graphics cards and processors.
Budget-focused builders with mid-range parts
The MAXPRO IV offers 550 watts at a lower power tier. It features 80 PLUS efficiency certification for reduced energy use. The unit includes individual mesh-sleeve cables for easier installation. You get a reliable non-modular design with Japanese capacitors. This model suits systems that do not require the latest PCIe 5.1 connectivity.
Those prioritizing latest connectivity standards
You need the CYBERG II for its ATX 3.1 compliance. It supports PCIe 5.1, ensuring compatibility with newest hardware. The 12V-2x6 connector simplifies wiring for modern GPUs. You also benefit from 650 watts of total power. This combination provides a future-proof foundation for builds that require the most current power delivery specifications.
The products compared
Enermax CYBERG II 650W ATX 3.1 Power Supply
Best for: Modern GPUs needing 650W ATX 3.1 support
- Wattage
- 650 Watt
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Non-Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12 V-2 x 6, PCIe (6+2)
- Fan Size
- 120mm
View on Amazon: Enermax CYBERG II 650W ATX 3.1 Power Supply Affiliate link
The Enermax CYBERG II 650W is a non-modular ATX 3.1 power supply designed for modern GPUs. It includes a 12V-2x6 cable and supports 200% power excursion for stability during load surges. Efficiency reaches 90% with Japanese capacitors. The 120 mm sleeve bearing fan ensures quiet operation. This unit suits builders needing reliable high-wattage support without modular cable management.
Pros
- 650W output with ATX 3.1 standard
- Includes 12V-2x6 PCIe 5.1 connector
- 200% power excursion reserve for stability
- 90% efficiency rating
- 120 mm sleeve bearing fan
Cons
- Non-modular design requires managing all cables
- 120 mm fan is smaller than standard 135 mm or 140 mm options
- Sleeve bearing fan may have shorter lifespan than fluid dynamic bearing alternatives
Good fit if
- You need a 650W unit for modern GPUs
- You prefer ATX 3.1 compatibility
- You do not mind non-modular cables
Skip if
- You require fully modular cables
- You need higher than 650W output
- You prefer larger fans for quieter operation
Verdict: Enermax CYBERG II 650W ATX 3.1 fits users who prioritize modern GPU support and efficiency over cable management flexibility. It delivers necessary power for high-load systems without the bulk of modular variants.
Enermax MAXPRO IV 550W Non-Modular PSU
Best for: Budget gaming builds needing 550W
- Wattage
- 550 Watt
- Efficiency Rating
- 80 PLUS
- Modularity
- Non-Modular
- ATX Version
- ATX12V v2.4
- Fan Size
- 120 mm
- Warranty
- 3 years
View on Amazon: Enermax MAXPRO IV 550W Non-Modular PSU Affiliate link
This Enermax unit delivers 550 watts of power in a non-modular ATX form factor. It carries an 80 PLUS efficiency rating and uses a 120 mm fan for cooling. The build includes individual mesh-sleeve cables for easier installation. It features a 3-year warranty and premium Japanese capacitors. This model suits gamers who need reliable power without the complexity of modular wiring.
Pros
- 80 PLUS efficiency rating for reduced energy waste
- 120 mm fan provides quiet cooling operation
- Individual mesh-sleeve cables improve cable management
- 3-year manufacturer warranty included
Cons
- Non-modular design limits cable customization
- Lower 550W output compared to 650W alternatives
- ATX12V v2.4 standard lacks ATX 3.1 features
Good fit if
- You need a reliable 550W source for mid-range builds
- You prefer pre-attached cables for simpler installation
- You want 80 PLUS efficiency at a lower wattage
Skip if
- You require ATX 3.1 compatibility for new GPUs
- You need more than 550 watts of power
- You want modular cables for cleaner builds
Verdict: Enermax MAXPRO IV 550W Non-Modular is a solid choice for users who prioritize efficiency and ease of installation over high wattage or modular flexibility.
Specifications side by side
| Spec | Enermax CYBERG II 650W ATX 3.1 Power Supply | Enermax MAXPRO IV 550W Non-Modular PSU |
|---|---|---|
| Wattage | 650 Watt | 550 Watt |
| Efficiency Rating | 80 PLUS Gold | 80 PLUS |
| Modularity | Non-Modular | Non-Modular |
| ATX Version | ATX 3.1 | ATX12V v2.4 |
| PCIe Connector Type | 12 V-2 x 6, PCIe (6+2) | not stated |
| Fan Size | 120mm | 120 mm |
| Warranty | not stated | 3 years |
| Form Factor | ATX | ATX |
| PCIe Version | PCIe 5.1 | not stated |
| Recommended Use | not stated | Gaming |
| Size | 650W | 550w |
| Device Compatibility | not stated | PCs |
| Dimensions | 5.51 × 5.91 × 3.39 inches | 5.51 × 5.91 × 3.39 inches |
| Weight | 2.51 pounds | 2.87 pounds |
| Color | Black | black |
| Model | ERV650G-AHG-NAC | EMP550W |
Frequently asked questions
Is the Enermax CYBERG II 650W ATX 3.1 compatible with new graphics cards?
Yes, it supports ATX 3.1 and PCIe 5.1 standards. This ensures compatibility with modern GPUs that require the latest power connectors. The unit includes a 12V-2x6 cable for direct connection. You get 650 watts of output, which handles high power demands effectively. It is designed for systems with modern high-end components.
Does the Enermax MAXPRO IV 550W have a 120mm fan?
Yes, the Enermax MAXPRO IV 550W Non-Modular PSU features a 120mm fan. This fan size helps manage thermal performance for a 550-watt unit. It is a solid choice for budget gaming builds. The non-modular design keeps installation simple. You get reliable cooling for standard gaming hardware requirements.
Which Enermax power supply is better for a modern GPU build?
The Enermax CYBERG II 650W ATX 3.1 is the better choice for modern GPUs. It supports ATX 3.1 and PCIe 5.1 standards. The included 12V-2x6 cable allows for direct GPU connection. It delivers 650 watts of power, providing more headroom than the 550W MAXPRO IV. This fits users prioritizing modern support.
Is the Enermax CYBERG II modular or non-modular?
The Enermax CYBERG II 650W ATX 3.1 is a non-modular power supply. All cables are permanently attached to the unit. This design reduces internal clutter but offers less flexibility for cable management. You get necessary power for high-load systems without the bulk of modular variants. It is straightforward to install.
What is the weight difference between the two Enermax units?
The Enermax CYBERG II weighs 2.51 pounds, while the MAXPRO IV weighs 2.87 pounds. The CYBERG II is lighter by 0.36 pounds. Both units share the same ATX form factor dimensions. The weight difference is minor and unlikely to impact case compatibility. You get similar physical footprints for both models.
Can the Enermax MAXPRO IV handle high-end gaming components?
The Enermax MAXPRO IV 550W is recommended for budget gaming builds. It provides 550 watts of total power output. This is sufficient for standard gaming components but offers less headroom than the 650W CYBERG II. It prioritizes efficiency and ease of installation. You get a reliable unit for mid-range systems rather than high-end loads.
Does the Enermax CYBERG II support PCIe 5.1?
Yes, the Enermax CYBERG II 650W ATX 3.1 supports PCIe 5.1. This ensures compatibility with the latest graphics card standards. It also supports ATX 3.1 for modern power delivery. The unit includes a 12V-2x6 cable for direct GPU connection. You get a future-proof solution for high-performance systems.
What is the model number for the Enermax MAXPRO IV?
The model number for the Enermax MAXPRO IV 550W Non-Modular PSU is EMP550W. It is a black unit with a 120mm fan. The dimensions are 5.91 inches wide, 3.39 inches high, and 5.51 inches long. You get a standard ATX form factor. This model is designed for budget gaming builds.