Best ASRock PC Power Supplies with 12V-2x6 Connector: 5 Spec-Based Picks

Quick picks

The best fit for you

• You want the most compact model for small cases ASRock Phantom Gaming 750W ATX 3.1 Power Supply It measures 5.91 inches wide and 3.39 inches high, fitting tight spaces.
• You need high wattage with a premium build ASRock Steel Legend White 850W ATX 3.1 PSU This 850W unit offers ATX 3.1 compliance and an 80 Plus Gold rating.
• You are building on a tight budget ASRock Challenger 750W Non-Modular PSU It provides 750W of power with a 12V-2x6 connector at a lower cost.
• You prefer a lighter unit for easier installation ASRock PRO 750G 750W ATX 3.1 Power Supply Weighing 4.78 pounds, it is the lightest option while maintaining Gold efficiency.

Our 5 picks

1 Best overall

ASRock Phantom Gaming 750W ATX 3.1 Power Supply

Best for: Compact gaming builds with modern GPUs

Connector

12V-2x6 Connector (what this guide is about)

Wattage

750W

Efficiency Rating

80 PLUS Gold, Cybenetics Platinum

Modularity

Fully Modular

ATX Version

ATX 3.1

PCIe Connector Type

12V-2x6

View on Amazon: ASRock Phantom Gaming 750W ATX 3.1 Power Supply Affiliate link

This ASRock unit delivers 750W of power with an 80 PLUS Gold efficiency rating. It features ATX 3.1 compliance and a native 12V-2x6 connector for modern GPUs. The fully modular design includes individually braided cables. A compact 100mm cube size helps with installation. It includes a 10-year warranty and intelligent fan control for quieter operation.

Pros

• 80 PLUS Gold efficiency rating
• ATX 3.1 standard compliance
• Native 12V-2x6 PCIe connector
• Fully modular cabling
• 10-year warranty coverage

Cons

• Heavier build at 7.5 pounds
• Square 100mm form factor limits airflow in tight cases
• No smart monitoring features listed

Good fit if

• You need a reliable 12V-2x6 connection for high-end graphics cards
• You prefer fully modular cables for cleaner builds
• You want a compact square unit for smaller cases

Skip if

• You require a standard ATX 150mm long PSU
• You need higher than 750W power output
• You want software-based fan curve control

Verdict: ASRock Phantom Gaming PG-750G is a compact, efficient choice for gamers using modern GPUs. It fits well in small form factor cases where standard lengths do not work.

2 Also great

ASRock Steel Legend White 850W ATX 3.1 PSU

Best for: compact builds with modern GPUs

Connector

12V-2x6 Connector (what this guide is about)

Wattage

850W

Efficiency Rating

80 PLUS Gold, Cybenetics Platinum

Modularity

Full Modular

ATX Version

ATX 3.1

PCIe Connector Type

12V-2x6

View on Amazon: ASRock Steel Legend White 850W ATX 3.1 PSU Affiliate link

The ASRock Steel Legend White Edition SL-850GW is a fully modular power supply rated at 850W. It supports ATX 3.1 and features the 12V-2x6 connector for modern GPUs. The unit holds 80 PLUS Gold certification and includes a 135 mm fan with iCOOL intelligent control. Its compact 5.91-inch square design fits many cases. This model suits builders needing reliable high-wattage support with a 10-year warranty.

Pros

• 850W output capacity
• ATX 3.1 and 12V-2x6 connector support
• 135 mm fan with iCOOL intelligent control
• 10-year global warranty
• Compact 5.91 x 5.91 x 3.39 inch dimensions

Cons

• Heavier at 6.59 pounds
• Limited to 850W compared to 1600W options
• No mention of digital monitoring or app control

Good fit if

• You need a 12V-2x6 connector for new GPUs
• You want a compact 5.91-inch square form factor
• You prefer a 10-year warranty for long-term use

Skip if

• You require more than 850W of power
• You need a larger 140 mm fan for quieter operation
• You want digital monitoring features not listed in the specs

Verdict: ASRock Steel Legend 850W ATX 3.1 fits users who need a compact, high-wattage PSU with a 12V-2x6 connector and long warranty coverage.

3 Best budget

ASRock Challenger 750W Non-Modular PSU

Best for: budget builds needing 12V-2x6 support

Connector

12V-2x6 Connector (what this guide is about)

Wattage

750W

Efficiency Rating

80 PLUS Bronze

Modularity

Non-Modular

ATX Version

ATX 2.52

PCIe Connector Type

12V-2x6

View on Amazon: ASRock Challenger 750W Non-Modular PSU Affiliate link

The ASRock Challenger 750W is a non-modular ATX 3.1 power supply designed for budget builds. It features 80 Plus Bronze efficiency and a native 12V-2x6 connector for PCIe 5.1 GPUs. The unit includes a 120mm golf-blade fan and a built-in 5V boost function. Its compact dimensions fit standard cases. This unit suits users who prioritize cost over cable management flexibility.

Pros

• Native 12V-2x6 connector supports up to 450W for PCIe 5.1 GPUs
• 80 Plus Bronze certified efficiency rating
• Built-in 5V boost function for motherboard compatibility
• Compact 5.1 x 5.91 x 3.39 inch form factor

Cons

• Non-modular design results in unused cables remaining inside the case
• 80 Plus Bronze efficiency is lower than the Gold-rated competitors
• Limited to 750W output compared to higher-wattage options available

Good fit if

• You need a budget-friendly PSU with a 12V-2x6 connector
• You are building a mid-range system with moderate power needs
• You prefer a compact unit that fits in smaller cases

Skip if

• You require fully modular cables for clean cable management
• You need higher efficiency ratings like 80 Plus Gold
• You plan to use high-end GPUs exceeding 750W capacity

Verdict: The ASRock Challenger 750W Non-Modular PSU is a practical entry-level option for users who need a 12V-2x6 connector without the cost of modular cabling or higher efficiency tiers.

4 Also great

ASRock PRO 750G 750W ATX 3.1 Power Supply

Best for: mid-range builds needing native 12V-2x6

Connector

12V-2x6 Connector (what this guide is about)

Wattage

750W

Efficiency Rating

80 PLUS Gold

ATX Version

ATX 3.1

PCIe Connector Type

12V-2x6

Fan Size

120mm

View on Amazon: ASRock PRO 750G 750W ATX 3.1 Power Supply Affiliate link

The ASRock PRO 750G delivers 750W of power with 80 PLUS Gold efficiency. It features a native 12V-2x6 connector for modern GPUs. The 120mm fan keeps noise low. This unit fits standard ATX cases. It suits builders needing reliable mid-range power for high-end components.

Pros

• 80 PLUS Gold efficiency rating
• Native 12V-2x6 connector support
• ATX 3.1 and PCIe 5.1 compliant
• 120mm quiet cooling fan

Cons

• Shorter 3-year warranty than competitors
• Lower 750W capacity than other list options
• Heavier build at 4.78 pounds

Good fit if

• You need a native 12V-2x6 connector
• You want high efficiency for lower heat
• You are building a mid-range system

Skip if

• You require more than 750W
• You prefer a longer warranty period
• You need a lighter power supply

Verdict: The ASRock PRO 750G ATX 3.1 offers solid efficiency and modern connector support for mid-range builds. It fits users prioritizing value and compatibility over maximum wattage or extended warranty coverage.

5 Best premium

ASRock PG-1600G 1600W Gold PSU

Best for: extreme multi-GPU and overclocking systems

Connector

12V-2x6 Connector (what this guide is about)

Wattage

1600W

Efficiency Rating

80+ Gold, Cybenetics Platinum

ATX Version

ATX 3.1

PCIe Connector Type

12V-2x6

Warranty

10-Year

View on Amazon: ASRock PG-1600G 1600W Gold PSU Affiliate link

This ASRock unit delivers 1600W of power, making it suitable for extreme multi-GPU or heavily overclocked systems. It features ATX 3.1 compliance and includes a dedicated 600W 12V-2x6 cable for next-generation graphics cards. The unit holds both 80 Plus Gold and Cybenetics Platinum certifications for high efficiency. You should consider this model if you need maximum wattage and robust future-proofing for your build.

Pros

• 1600W power capacity for extreme setups
• Includes 600W 12V-2x6 GPU cable
• 80 Plus Gold and Cybenetics Platinum certified
• 10-year warranty coverage

Cons

• Significantly higher wattage than other options on the list
• Likely larger physical footprint due to high capacity
• Overkill for standard single-GPU gaming rigs

Good fit if

• You are building a multi-GPU workstation
• You need maximum headroom for extreme overclocking
• You want a 10-year warranty for longevity

Skip if

• You only need 750W to 850W for gaming
• You have a small form factor case
• You want a more compact power supply

Verdict: ASRock Phantom Gaming PG-1600W PSU is built for users requiring extreme power capacity and long-term reliability. It fits enthusiasts running multi-GPU setups or heavy custom water-cooling loops.

Specifications side by side

How to Choose the Right PSU

1. Check Efficiency Ratings

   You should look at the 80 Plus rating to understand energy waste. Gold efficiency, found in the Phantom Gaming and Steel Legend models, converts more electricity into usable power. Bronze efficiency, like the Challenger, is less efficient but costs less. Higher efficiency keeps your system cooler and reduces electricity bills. Choose Gold if you run your PC for many hours. Bronze is fine for light use. This spec directly impacts your long-term operating costs and thermal output.

2. Verify ATX Version

   Ensure the power supply matches your motherboard standards. ATX 3.1 compliance, seen in the Phantom Gaming and Steel Legend, ensures modern compatibility. This version supports the latest power delivery requirements for high-end components. It guarantees stable voltage under varying loads. Older standards may not handle transient power spikes well. Check the ATX version in the attributes list. Matching this spec prevents compatibility issues with new motherboards and ensures your system runs reliably under heavy loads.

3. Assess Modularity Needs

   Decide if you need fully modular or non-modular cables. Fully modular units, like the Phantom Gaming, let you plug in only the cables you use. This reduces clutter inside your case and improves airflow. Non-modular units, such as the Challenger, have all cables attached. They are often cheaper but can make cable management harder. If you value a clean build, choose fully modular. If you want simplicity and lower cost, non-modular works. This choice affects how you organize wires inside your chassis.

4. Match Wattage to Use

   Select a wattage that fits your specific build needs. The 750W models suit most gaming PCs. The 850W Steel Legend offers more headroom for future upgrades. The 1600W Phantom Gaming is for extreme multi-GPU setups or heavy overclocking. Do not buy excessive wattage if you do not need it. Higher wattage units are often larger and more expensive. Check your GPU and CPU power draws. Pick a unit that meets your peak load requirements without significant overhead.

5. Consider Physical Size

   Check the dimensions to ensure it fits your case. Most ASRock models here measure 5.91 inches wide and 3.39 inches high. The length varies slightly, with the Challenger and PRO 750G being shorter at 5.51 inches. Measure your case interior before buying. A shorter PSU fits in smaller form factor cases. Longer units may block drive bays or cable routing paths. Verify your case compatibility to avoid installation issues. This physical spec is critical for proper fitment.

Frequently asked questions

See also

• best 12V Max power tool combo kits
• asrock deskslim x600 5l mini PC alternatives