6 Best Alternatives to the BQZYX+ ADD2PSU 4 in 1 (2026)

How these alternatives differ

MSI MAG 850W Fully Modular ATX Power Supply

The MSI MAG 850W replaces the dual-supply adapter with a single, modern unit. It delivers 850W of power through an ATX 3.1 standard, supporting PCIe 5.1 GPUs via a 12V-2x6 connector. This fully modular design offers better cable management than the original adapter. While the adapter triggers two units, this PSU handles all power needs in one package. It is ideal for gamers who want a clean build without managing multiple power supplies. The 10-year warranty provides long-term reliability that the small adapter cannot match. You get higher efficiency and fewer cables in a compact 8.75-inch frame.

Corsair RM850x Shift 850W White ATX Power Supply

The Corsair RM850x Shift offers 850W of power in a compact ATX 3.1 form factor. It supports PCIe 5.1 and features fully modular cables for easy installation. Unlike the original adapter, which links two power supplies, this unit provides all necessary power from a single source. It is designed for high-end gaming builds that require efficient power delivery. The white color option allows for better aesthetic integration in visible builds. You gain the benefit of modern connector standards without the complexity of dual-supply setups. This choice suits users who prioritize clean cable management and future-proof connectivity over multi-rail triggering.

Corsair RM1000x 1000W ATX 3.1 PSU

The Corsair RM1000x provides 1000W of power, significantly exceeding the capacity of the original adapter. It supports ATX 3.1 and PCIe 5.1 standards, making it suitable for high-end gaming PCs. This fully modular unit eliminates the need for a secondary power supply, simplifying your build. The compact dimensions allow for easy installation in various case sizes. You receive ample power for demanding components without the hassle of linking multiple units. The 12V-2x6 connector ensures compatibility with modern graphics cards. This option is best for enthusiasts who need maximum power efficiency and reliability in a single, robust package.

Corsair RM1000x Shift 1000W Power Supply

The Corsair RM1000x Shift delivers 1000W of power with an ATX 3.0 standard. It features fully modular cables and supports modern connector requirements. Unlike the original adapter, this single unit handles all power needs for high-wattage builds. It is designed for users who need reliable power delivery without managing multiple power supplies. The compact design fits easily into most cases. You gain the benefits of a single, efficient power source with full modularity. This choice is ideal for builders who prioritize efficiency and modern standards over the dual-supply functionality of the original adapter. It offers a streamlined solution for high-performance systems.

Corsair RM850x 850W Fully Modular ATX 3.1 PSU

The Corsair RM850x provides 850W of power with an ATX 3.1 standard. It supports PCIe 5.1 and features fully modular cables for clean installations. This single unit replaces the need for the original adapter and a secondary power supply. It is designed for mid-to-high-end rigs that require efficient power delivery. The compact dimensions allow for easy integration into various case sizes. You benefit from modern connector standards and simplified cable management. This option is best for users who want a reliable, single-source power solution. It eliminates the complexity of dual-supply setups while providing ample power for modern gaming components.

Corsair RM750x Shift White 750W ATX Power Supply

The Corsair RM750x Shift offers 750W of power with an ATX 3.1 standard. It supports PCIe 5.1 and features fully modular cables. The side-access connector design simplifies cable management compared to the original adapter. This single unit handles all power needs for mid-range gaming rigs. You gain the benefits of a compact, efficient power source without managing multiple units. The white color option allows for better aesthetic integration in visible builds. This choice is ideal for builders who prioritize ease of installation and modern power standards. It provides a streamlined solution for systems that do not require the dual-supply functionality of the original adapter.

Quick picks

Our 7 picks

1 Best overall

BQZYX+ ADD2PSU 4 in 1 PSU Adapter

Best for: linking two power supplies simultaneously

Form Factor

ATX

Weight

0.92 ounces

View on Amazon: BQZYX+ ADD2PSU 4 in 1 PSU Adapter Affiliate link

This adapter lets you link two ATX power supplies to run together. You plug one Molex 4Pin, SATA, ATX 6Pin, or 4Pin cable from your main unit into the board, then attach your secondary unit via its 24-pin connector. Onboard LEDs display 3.3V, 5V, 12V, PS-ON, and standby rails, helping you confirm operating status across multiple components.

Pros

• Accepts Molex 4Pin, SATA, ATX 6Pin, and 4Pin trigger inputs
• Onboard diagnostic LEDs for 3.3V, 5V, 12V, PS-ON, and standby rails
• Standard 24-pin female port syncs secondary power unit switching
• Compact board design weighs 0.92 ounces

Cons

• Bare board construction lacks an external protective enclosure
• Requires an existing secondary power unit to provide supplemental wattage

Good fit if

• You need to turn two power supplies on and off simultaneously
• You want visual LED indicators for rail voltages and standby power
• You have a spare Molex, SATA, 6-pin, or 4-pin lead from your primary supply

Skip if

• You prefer a single high-output supply over managing two separate units
• You require an enclosed adapter housing for internal case mounting

Verdict: BQZYX+ 4-in-1 Dual PSU Adapter serves multi-rail setups by linking a secondary unit through multiple trigger input options. It fits system builders expanding power across separate supplies without buying an all-in-one replacement.

2 Best budget

MSI MAG 850W Fully Modular ATX Power Supply

Best for: modern gaming PCs with PCIe 5.1 GPUs

Wattage

850W

Efficiency Rating

80+ Gold

Modularity

Fully Modular

ATX Version

ATX 3.1

PCIe Connector Type

12V-2x6

Warranty

10 Year

View on Amazon: MSI MAG 850W Fully Modular ATX Power Supply Affiliate link

The MSI MAG A850GL is a fully modular 850W power supply built for modern gaming rigs. It meets ATX 3.1 and PCIe 5.1 standards, featuring a native 12V-2x6 connector for new GPUs. The unit carries an 80 Plus Gold efficiency rating and includes a 10-year warranty. Its compact dimensions help fit into smaller cases while delivering stable power for high-end components.

Pros

• 850W output capacity for high-end builds
• Fully modular cable management
• ATX 3.1 and PCIe 5.1 ready
• 10-year warranty coverage
• 80 Plus Gold efficiency rating

Cons

• Physical dimensions of 12x8.75x4.92 inches may not fit very small cases
• No mention of low-noise fan control profiles in the data
• Lacks included RGB lighting features found in some competitors

Good fit if

• You need a native 12V-2x6 connector for PCIe 5.1 GPUs
• You want a fully modular design for clean cable routing
• You prefer a long 10-year warranty period

Skip if

• You require a smaller form factor like SFX or SFX-L
• You are building a low-power office PC under 500W
• You need RGB lighting synchronization capabilities

Verdict: The MSI MAG A850GL 850W ATX 3.1 is a solid choice for gamers upgrading to next-generation graphics cards. It offers the necessary connectors and efficiency for modern systems without excessive bulk.

3 Also great

Corsair RM850x Shift 850W White ATX Power Supply

Best for: Modern high-end gaming builds

Wattage

850W

Efficiency Rating

80 Plus Gold

Modularity

Fully Modular

ATX Version

ATX 3.1

PCIe Connector Type

PCIe 5.1

Dimensions

6.3 × 5.91 × 3.39 inches

View on Amazon: Corsair RM850x Shift 850W White ATX Power Supply Affiliate link

This Corsair unit delivers 850W of power with an 80 Plus Gold efficiency rating. It supports the latest ATX 3.1 standard and PCIe 5.1 connectors. The fully modular design helps you manage cables neatly. It features a zero RPM fan mode for quiet operation. This white power supply suits builders who need reliable high-end performance and modern connector compatibility.

Pros

• 850W output capacity
• 80 Plus Gold efficiency
• ATX 3.1 compliance
• PCIe 5.1 support
• Fully modular cables

Cons

• Larger physical footprint than compact units
• Heavier build at 3.75 pounds
• White color may not match all cases

Good fit if

• You need PCIe 5.1 support for new GPUs
• You prefer fully modular cable management
• You want high efficiency ratings

Skip if

• You require a compact form factor
• You are building a budget system
• You need a black power supply

Verdict: Corsair RM850x Shift 850W ATX 3.1 is a robust choice for modern high-end builds requiring PCIe 5.1 support and efficient power delivery. It fits users prioritizing cable management and current standards over compact size.

4 Best premium

Corsair RM1000x 1000W ATX 3.1 PSU

Best for: High-end gaming PCs

Wattage

1000W

Efficiency Rating

Cybenetics Gold

Modularity

Fully Modular

ATX Version

ATX 3.1

PCIe Connector Type

12V-2x6

PCIe Version

PCIe 5.1

View on Amazon: Corsair RM1000x 1000W ATX 3.1 PSU Affiliate link

This is a Corsair RM1000x power supply with 1000W capacity. It is fully modular and supports ATX 3.1 standards. The unit includes a 12V-2x6 connector for PCIe 5.1 compatibility. It carries a Cybenetics Gold efficiency rating. The build is compact, measuring 2.3 inches in length. It suits users needing high power for modern graphics cards.

Pros

• 1000W output capacity
• Fully modular cable design
• ATX 3.1 compliance
• 12V-2x6 PCIe connector
• Cybenetics Gold efficiency

Cons

• 6.88 pounds weight is high
• 2.3-inch length may not fit small cases
• Black color only

Good fit if

• You need 1000W for high-end GPUs
• You want ATX 3.1 support
• You prefer fully modular cables

Skip if

• You have a small form factor case
• You need less than 1000W
• You want a lighter unit

Verdict: Corsair RM1000x ATX 3.1 1000W is a high-capacity unit for enthusiasts. It fits builders needing PCIe 5.1 readiness and ample power.

5 Best atx 3.0

Corsair RM1000x Shift 1000W Power Supply

Best for: high-wattage ATX 3.0 builds

Wattage

1000W

Efficiency Rating

80 Plus Gold

Modularity

Fully Modular

ATX Version

ATX 3.0

Dimensions

7.09 × 5.91 × 5.08 inches

Weight

4.2 pounds

View on Amazon: Corsair RM1000x Shift 1000W Power Supply Affiliate link

This 1000W power supply uses the ATX 3.0 standard and carries an 80 Plus Gold efficiency rating. It features fully modular cabling and a compact side-interface design. The unit measures 5.91 by 7.09 inches and weighs 4.2 pounds. You should choose this model if you need high wattage for modern components and want to save space in your case.

Pros

• 1000W output capacity
• ATX 3.0 compliance
• 80 Plus Gold efficiency
• Fully modular cables
• Compact side interface

Cons

• Heavier than some competitors at 4.2 pounds
• Larger footprint than low-profile units
• No ATX 3.1 support

Good fit if

• You need 1000W for high-end GPUs
• You want ATX 3.0 compatibility
• You prefer fully modular cabling

Skip if

• You require ATX 3.1 standards
• You need a lower wattage unit
• You want a lighter power supply

Verdict: Corsair RM1000x Shift 1000W ATX 3.0 fits users who need reliable 1000W power with modern ATX 3.0 connectors. It suits builders prioritizing efficiency and compact modularity over ultra-lightweight designs.

6 Also great

Corsair RM850x 850W Fully Modular ATX 3.1 PSU

Best for: ATX 3.1 builds needing 850W

Wattage

850W

Efficiency Rating

Cybenetics Gold

Modularity

Fully Modular

ATX Version

ATX 3.1

PCIe Connector Type

12V-2x6

PCIe Version

PCIe 5.1

View on Amazon: Corsair RM850x 850W Fully Modular ATX 3.1 PSU Affiliate link

The Corsair RM850x is a fully modular power supply rated at 850W. It supports ATX 3.1 standards and includes PCIe 5.1 compatibility via a 12V-2x6 connector. This unit achieves Cybenetics Gold efficiency, ensuring reliable power delivery with low noise. Its compact dimensions of 3.39 by 5.91 by 2.3 inches allow for easier installation in various cases. You get a stable foundation for high-end builds without excessive bulk.

Pros

• 850W output capacity for demanding systems
• Fully modular cable design for clean builds
• ATX 3.1 compliance and PCIe 5.1 support
• Cybenetics Gold efficiency certification
• Compact 2.3-inch depth for small form factors

Cons

• Heavier at 3.9 pounds compared to lighter units
• No digital display for real-time monitoring
• Limited to 850W if higher power is needed

Good fit if

• You need ATX 3.1 compliance for new GPUs
• You prefer fully modular cables for airflow
• You want Cybenetics Gold efficiency ratings

Skip if

• You require more than 850W of power
• You need a power supply under 3 pounds
• You want a built-in digital display

Verdict: Corsair RM850x ATX 3.1 850W PSU offers a balanced mix of modern connectivity and efficiency. It fits users building mid-to-high-end rigs who value clean cable management and future-proof PCIe support.

7 Best 750w

Corsair RM750x Shift White 750W ATX Power Supply

Best for: side-access modular cable management

Wattage

750W

Efficiency Rating

80 Plus Gold

Modularity

Fully Modular

ATX Version

ATX 3.1

Fan Size

140mm

PCIe Version

PCIe 5.1

View on Amazon: Corsair RM750x Shift White 750W ATX Power Supply Affiliate link

The Corsair RM750x Shift is a fully modular 750W power supply certified for ATX 3.1 and PCIe 5.1. It features side-mounted modular connections for easier cable management and uses a 140mm fan for quiet operation. You get 80 Plus Gold efficiency and Japanese electrolytic capacitors for reliability. This unit suits builders who need compact, clean wiring in modern systems.

Pros

• ATX 3.1 certification for modern platforms
• Side-mounted modular connections for access
• 140mm fan for low noise
• 80 Plus Gold efficiency rating

Cons

• 750W output is lower than 850W or 1000W competitors
• No 12VHPWR cable included in data
• Standard ATX form factor limits extreme compact builds

Good fit if

• You need side-mounted connectors for cleaner cable routing
• You build with ATX 3.1 and PCIe 5.1 standards
• You prefer a 140mm fan for quieter operation

Skip if

• You require more than 750W of power
• You need a fully compact SFX power supply
• You want a 12VHPWR cable pre-included

Verdict: Corsair RM750x Shift 750W ATX 3.1 is ideal for builders prioritizing cable management ease and modern power standards. It fits mid-range gaming rigs that benefit from side-access connectors and efficient power delivery.

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Frequently asked questions

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