6 Best Alternatives to the Thermaltake Blue Sleeved 20+4-Pin ATX (2026)
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You might be searching for thermaltake AC 009 cn5nan pb individually sleeved 20 4pin alternatives if you need a specific blue ATX cable. The original Thermaltake unit offers a 19.7-inch length and blue sleeving for standard ATX motherboard power delivery. It serves as a focused wiring solution for blue-themed builds. However, you may prefer a complete power supply unit for better modularity or modern compliance. You might also need higher wattage or different connector standards like ATX 3.1 and PCIe 5.1. This list includes 6 options that overlap with the original in form factor and purpose. Some entries provide full modular power supplies rather than just cables. These alternatives cover various wattages from 750W to 1000W. They feature different efficiencies and connector types. You can choose based on your specific build requirements. The selected products meet the core ATX specification while offering additional features. This approach ensures you find a suitable replacement or upgrade. Each option is ranked by its suitability for modern PC configurations. You get a clear path to the right component for your system.
Our top pick: Thermaltake Blue Sleeved 20+4-Pin ATX Cable.
How each alternative compares
MSI MAG 850W Fully Modular ATX Power Supply
The MSI MAG 850W is a complete power supply, not a single cable. It delivers 850W with ATX 3.1 and PCIe 5.1 standards. You get a 12V-2x6 connector for modern GPUs. The unit is fully modular and earns 80 Plus Gold efficiency. It measures 12 inches long and 8.75 inches wide. This choice replaces your entire power source rather than just extending a connection. You should pick this if you need full system power with modern standards. It lacks the specific blue aesthetic of the Thermaltake cable. It provides comprehensive power delivery instead of a single wiring solution.
Corsair RM850x Shift 850W White ATX Power Supply
The Corsair RM850x Shift offers 850W of fully modular power. It supports ATX 3.1 and PCIe 5.1 standards. The unit features white coloring and side-mounted connectors. It weighs 3.75 pounds and measures 6.3 inches in length. This is a complete power supply unit, not a replacement cable. You gain modern power delivery capabilities and full modularity. You give up the specific blue sleeving and standalone cable form factor. Choose this if you need a reliable ATX 3.1 source. It fits builds prioritizing modern PCIe 5.1 support over aesthetic cable matching. The white color contrasts with the original blue theme.
Corsair RM1000x 1000W ATX 3.1 PSU
The Corsair RM1000x provides 1000W of fully modular power. It supports ATX 3.1 and PCIe 5.1 with a 12V-2x6 connector. The unit is black and weighs 6.88 pounds. It measures 2.3 inches in length. This is a high-wattage power supply, not a single cable. You gain robust power for demanding systems. You lose the specific blue aesthetic and compact cable form. Pick this if you need high wattage and modern standards. It replaces the need for separate cable adaptations. The black color differs from the original blue. It serves high-draw builds rather than simple cable routing needs.
Corsair RM1000x Shift 1000W Power Supply
The Corsair RM1000x Shift delivers 1000W with ATX 3.0 compliance. It is fully modular and features 80 Plus Gold efficiency. The unit is black and weighs 4.2 pounds. It measures 7.09 inches in length. This is a complete power supply, not a single cable. You gain side-mounted modular connections for easier routing. You give up the blue color and standalone cable design. Choose this for high-power ATX 3.0 builds. It provides solid efficiency and modern power delivery. The black finish contrasts with the original blue theme. It serves as a full power source rather than a wiring accessory.
Corsair RM850x 850W Fully Modular ATX 3.1 PSU
The Corsair RM850x offers 850W with ATX 3.1 support. It is fully modular and supports PCIe 5.1. The unit is black and weighs 3.9 pounds. It measures 2.3 inches in length. It provides Cybenetics Gold efficiency. This is a complete power supply, not a single cable. You gain modern power delivery and modularity. You lose the blue aesthetic and standalone form. Pick this if you want a complete modern power source. It lacks the specific blue sleeving of the Thermaltake cable. The black color differs from the original. It serves as a full power unit rather than a wiring extension.
Corsair RM750x Shift White 750W ATX Power Supply
The Corsair RM750x Shift provides 750W with ATX 3.1 support. It is fully modular and supports PCIe 5.1. The unit is white and weighs 3.75 pounds. It measures 6.3 inches in length. It features side-mounted connections and Japanese capacitors. This is a complete power supply, not a single cable. You gain side access for easier cable management. You give up the blue color and standalone design. Choose this for mid-tier builds needing side access. It offers 80 Plus Gold efficiency. The white finish contrasts with the original blue. It serves as a full power source rather than a cable replacement.
Quick picks
Our 7 picks
Thermaltake Blue Sleeved 20+4-Pin ATX Cable
Best for: blue-themed ATX motherboard power routing
- Form Factor
- ATX
- Dimensions
- 19.7 × 15 × 6.3 inches
- Weight
- 6.35 ounces
View on Amazon: Thermaltake Blue Sleeved 20+4-Pin ATX Cable Affiliate link
This Thermaltake component is an individually sleeved 20+4-pin ATX cable designed for motherboard power connections. At 19.7 inches long, it provides the reach needed to route main board power through standard ATX enclosures. The unit weighs 6.35 ounces and features a blue finish. It suits you if you need a dedicated blue 20+4-pin ATX power link for your build without replacing your existing hardware.
Pros
- Individually sleeved blue wires
- 19.7-inch cable length provides routing reach
- Standard 20+4-pin ATX form factor support
- Lightweight build at 6.35 ounces
Cons
- Supplies only a single 20+4-pin cable without auxiliary lines
- Color option restricted to blue
Good fit if
- You need a 19.7-inch 20+4-pin cable for an ATX motherboard.
- You specifically require blue individually sleeved wiring.
Skip if
- You need a complete modular power supply rather than an individual cable.
- You need EPS or PCIe supplementary power connections.
Verdict: Thermaltake Blue Sleeved 20+4-Pin ATX Cable provides a 19.7-inch individually sleeved connection tailored for standard ATX motherboard power delivery. It serves as a focused wiring solution when you specifically require a blue 20+4-pin interface.
MSI MAG 850W Fully Modular ATX Power Supply
Best for: modern gaming rigs needing ATX 3.1 power
- 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
This MSI power supply provides a complete 850-watt power solution rather than a standalone replacement cable. It features ATX 3.1 compliance, PCIe 5.1 support with a dedicated 12V-2x6 connector, and an 80 Plus Gold efficiency rating. The unit uses a fully modular layout and includes a 10-year warranty. You will find it fits modern gaming builds requiring updated power standards and full cable management.
Pros
- 80 Plus Gold efficiency rating
- ATX 3.1 and PCIe 5.1 compliant with native 12V-2x6 connector
- Fully modular cable layout
- 10-year warranty coverage
Cons
- Complete power supply unit rather than a simple extension cable
- No blue or custom-colored sleeving listed
Good fit if
- You need an entire 850W power supply rather than just an extension cable.
- You build a system requiring native ATX 3.1 and PCIe 5.1 connectors.
- You want fully modular cabling backed by a 10-year warranty.
Skip if
- You only need a blue-sleeved 20+4-pin motherboard extension cable.
- You require a power supply with wattage exceeding 850W.
Verdict: MSI MAG 850W Modular Power Supply delivers ATX 3.1 compliance and 80 Plus Gold efficiency for modern gaming hardware. It provides a full power replacement rather than an individual sleeved cable accessory.
Corsair RM850x Shift 850W White ATX Power Supply
Best for: ATX 3.1 builds needing PCIe 5.1
- 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
The Corsair RM850x Shift is a fully modular 850W power supply built for modern systems. It meets ATX 3.1 standards and supports PCIe 5.1 for high-end graphics cards. The unit delivers 80 Plus Gold efficiency. It features a white finish and a compact form factor. This design suits builders who need reliable power delivery and clean cable management for their components.
Pros
- Fully modular cable design
- ATX 3.1 compliance
- PCIe 5.1 support
- 80 Plus Gold efficiency
Cons
- White finish may not match dark builds
- Standard ATX form factor size
- No included individually sleeved cables
Good fit if
- You need ATX 3.1 compatibility
- You want 80 Plus Gold efficiency
- You prefer a white power supply
Skip if
- You require a fully sleeved cable kit
- You need a smaller SFX form factor
- You prefer a black power supply
Verdict: Corsair RM850x Shift ATX 3.1 offers solid modern standards and efficiency. It fits users who prioritize ATX 3.1 and PCIe 5.1 support over pre-sleeved aesthetics.
Corsair RM1000x 1000W ATX 3.1 PSU
Best for: high-wattage builds needing ATX 3.1 support
- 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 1000W fully modular ATX power supply built to ATX 3.1 and PCIe 5.1 standards. Instead of an add-on cable extension, it provides an entire high-capacity unit with native 12V-2x6 connectivity and Cybenetics Gold efficiency. You get clean cable management with modular black cables to run demanding hardware. It suits your build if you need reliable high wattage alongside modern power delivery standards.
Pros
- 1000W capacity with Cybenetics Gold efficiency rating
- ATX 3.1 compliant with PCIe 5.1 support
- Dedicated 12V-2x6 connector
- Fully modular cable design
Cons
- Standard black finish without colored sleeving
- Heavier unit at 6.88 pounds
Good fit if
- You need 1000W of fully modular power for high-demand hardware.
- You require native ATX 3.1 and PCIe 5.1 12V-2x6 connectivity.
- You want a complete Cybenetics Gold power supply rather than a standalone cable.
Skip if
- You only need an accent cable extension rather than an entire power supply.
- You specifically want blue sleeved wiring for your build aesthetic.
Verdict: Corsair 1000W ATX 3.1 Power Supply delivers robust 1000W output and ATX 3.1 compliance for systems requiring modern PCIe 5.1 power delivery. It replaces the need for separate cable adaptations with a complete, fully modular Gold-certified unit.
Corsair RM1000x Shift 1000W Power Supply
Best for: high-power ATX 3.0 PC 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 unit is a 1000W ATX power supply featuring ATX 3.0 and PCIe 5.0 compliance. You get full modularity paired with a side interface design for cable routing, along with an 80 Plus Gold efficiency rating. At 7.09 inches long, it delivers substantial capacity for modern hardware. It suits your build if you require high wattage and dedicated PCIe 5.0 support for your core computer components.
Pros
- 1000W output capacity with 80 Plus Gold efficiency
- ATX 3.0 and PCIe 5.0 compliant architecture
- Fully modular cabling with a side-mounted interface
- Standard ATX form factor
Cons
- 7.09-inch length requires extra chassis depth
- Side-facing connectors demand clearance next to the PSU bay
Good fit if
- You need a 1000W capacity unit with ATX 3.0 and PCIe 5.0 standards.
- You have a PC chassis that accommodates side-facing modular connectors.
- You want an 80 Plus Gold rated, fully modular cabling setup.
Skip if
- You have a compact case lacking width for side modular connectors.
- You need a smaller chassis fit under 7.09 inches in power supply length.
Verdict: Corsair RM1000x Shift 1000W Power Supply delivers ATX 3.0 compliance and 1000W of fully modular power through a side interface layout. It provides solid 80 Plus Gold efficiency for modern high-draw builds that have adequate case clearance.
Corsair RM850x 850W Fully Modular ATX 3.1 PSU
Best for: modern 850W ATX 3.1 system builds
- 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 850W ATX 3.1 Power Supply is a fully modular unit designed for current system builds. It delivers 850W of power, holds a Cybenetics Gold efficiency rating, and supports both ATX 3.1 and PCIe 5.1 standards. You get a dedicated 12V-2x6 connector for modern graphics cards and fully modular cabling to simplify routing. This unit suits you if you need a complete 850W foundation.
Pros
- 850W capacity with ATX 3.1 and PCIe 5.1 compliance
- Fully modular cable configuration
- Equipped with a 12V-2x6 connector
- Cybenetics Gold efficiency certification
Cons
- Comes in standard black with no colored cable sleeving
- Capacity capped at 850W
Good fit if
- You need an 850W supply that matches ATX 3.1 standards.
- You require a dedicated 12V-2x6 connector for your hardware.
Skip if
- You only need an individual blue sleeved replacement cable.
- You require more than 850W of power output.
Verdict: Corsair RM850x 850W ATX 3.1 Power Supply provides fully modular 850W delivery with PCIe 5.1 and Cybenetics Gold efficiency. It works well if you want a complete modern power supply rather than a standalone accent cable.
Corsair RM750x Shift White 750W ATX Power Supply
Best for: 750W builds needing side cable access
- 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 built in a white finish. It features side-mounted interface ports using Type 5 micro-fit connectors to change how you route internal cables. Built to ATX 3.1 and PCIe 5.1 standards, it holds an 80 Plus Gold efficiency rating and uses a 140mm cooling fan. This model suits you if you want a modern 750W unit for compatible enclosures.
Pros
- Side-mounted modular panel with Type 5 micro-fit connectors
- Intel ATX 3.1 and PCIe 5.1 certified
- 80 Plus Gold certified efficiency
- 140mm fluid dynamic bearing fan with Zero RPM mode
Cons
- Side cable layout requires specific case clearance
- Lower 750W capacity compared to higher-wattage alternatives
Good fit if
- You need a 750W power supply with side-facing modular ports.
- You want ATX 3.1 and PCIe 5.1 support for your build.
- You are assembling a white-themed computer build.
Skip if
- You need more than 750W of power for your hardware.
- You have a PC case that lacks side clearance for PSU connectors.
Verdict: Corsair RM750x Shift 750W Power Supply provides side-mounted modular connections alongside modern ATX 3.1 and PCIe 5.1 compatibility. It delivers 80 Plus Gold efficiency and Japanese capacitors for mid-tier configurations.
Specifications side by side
| Spec | Thermaltake Blue Sleeved 20+4-Pin ATX Cable | MSI MAG 850W Fully Modular ATX Power Supply | Corsair RM850x Shift 850W White ATX Power Supply | Corsair RM1000x 1000W ATX 3.1 PSU | Corsair RM1000x Shift 1000W Power Supply | Corsair RM850x 850W Fully Modular ATX 3.1 PSU | Corsair RM750x Shift White 750W ATX Power Supply |
|---|---|---|---|---|---|---|---|
| Wattage | not stated | 850W | 850W | 1000W | 1000W | 850W | 750W |
| Efficiency Rating | not stated | 80+ Gold | 80 Plus Gold | Cybenetics Gold | 80 Plus Gold | Cybenetics Gold | 80 Plus Gold |
| Modularity | not stated | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular |
| ATX Version | not stated | ATX 3.1 | ATX 3.1 | ATX 3.1 | ATX 3.0 | ATX 3.1 | ATX 3.1 |
| PCIe Connector Type | not stated | 12V-2x6 | PCIe 5.1 | 12V-2x6 | not stated | 12V-2x6 | not stated |
| Fan Size | not stated | not stated | not stated | not stated | not stated | not stated | 140mm |
| Warranty | not stated | 10 Year | not stated | not stated | not stated | not stated | not stated |
| Form Factor | ATX | Compact | ATX | ATX | ATX | ATX | ATX |
| PCIe Version | not stated | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 | not stated | PCIe 5.1 | PCIe 5.1 |
| Recommended Use | not stated | Gaming | not stated | not stated | not stated | not stated | not stated |
| Connector | not stated | 12V-2x6 Connector | not stated | 12V-2x6 Connector | not stated | 12V-2x6 Connector | not stated |
| Size | 600 millimeters | 850W (PCIE 5) | 850W | 1000W | 1000W | 850W | 750W |
| Dimensions | 19.7 × 15 × 6.3 inches | 12 × 8.75 × 4.92 inches | 6.3 × 5.91 × 3.39 inches | 2.3 × 3.39 × 5.91 inches | 7.09 × 5.91 × 5.08 inches | 2.3 × 3.39 × 5.91 inches | 6.3 × 5.91 × 3.39 inches |
| Weight | 6.35 ounces | not stated | 3.75 pounds | 6.88 pounds | 4.2 pounds | 3.9 pounds | 3.75 pounds |
| Color | Blue | not stated | White | Black | Black | Black | White |
| Model | AC-009-CN5NAN-PB | not stated | not stated | not stated | not stated | not stated | CP-9020273-NA |
If you need chassis cooling specifications, you can evaluate thermaltake 200mm pure 20 series alternatives for your setup.
Frequently asked questions
Can I use a modular power supply instead of a single ATX cable?
Yes, using a fully modular power supply is a common alternative. Products like the MSI MAG 850W provide complete power delivery rather than just a cable. This approach simplifies management since you connect only the cables you need. It is ideal if you want a complete replacement rather than a single accessory.
Do these alternatives support modern PCIe 5.1 graphics cards?
Several listed power supplies support PCIe 5.1 standards. The MSI MAG 850W and Corsair RM850x Shift both feature PCIe 5.1 compatibility. They include 12V-2x6 connectors for direct GPU power. This ensures you have the necessary support for modern high-performance graphics hardware without needing extra adapters.
What is the difference between ATX 3.0 and ATX 3.1 versions?
ATX 3.1 is the newer standard, offering improved power delivery features. The Corsair RM1000x and MSI MAG 850W comply with ATX 3.1. Older units like the Corsair RM1000x Shift follow ATX 3.0. Both versions provide robust power, but ATX 3.1 units are better suited for the latest hardware requirements.
Are there white power supply options available?
Yes, white power supplies are available for builds with light-colored cases. The Corsair RM850x Shift and RM750x Shift both come in white. These units offer 80 Plus Gold efficiency and fully modular designs. They provide a clean aesthetic match while maintaining high performance standards for your system.
Which power supply is best for high-wattage builds?
The Corsair RM1000x is a top choice for high-wattage needs. It delivers 1000W of power with ATX 3.1 compliance. This unit is fully modular and supports PCIe 5.1. It provides robust output for systems requiring significant power, making it suitable for demanding gaming or workstation configurations.
Do these units have side-mounted connectors?
Some Corsair models feature side-mounted modular connectors. The RM850x Shift and RM750x Shift both use this layout. This design can improve airflow and cable management in smaller cases. It allows for easier access to connections when building or upgrading your system components.