Looking Beyond the Be Quiet! Straight Power 11 Platinum? 6 Alternatives Worth a Look
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
The be quiet! Straight Power 11 Platinum 750W delivers 80 PLUS Platinum efficiency and features a large 135mm fan for quiet operation. If you are considering be quiet straight power 11 platinum alternatives, you may want a different form factor or modern connector standards. This unit measures 13 inches long, which exceeds the depth of many compact cases. Some builders also prefer ATX 3.1 support or side-mounted connectors for easier cable management.
This guide highlights 6 options that share key specifications with the original, such as 750W output and fully modular designs. You will find choices with 10-year warranties, SFX dimensions for small builds, and RGB lighting for aesthetic customization. Each alternative was selected because its published specs overlap with the Straight Power 11, ensuring comparable performance in specific areas. Whether you need a compact SFX unit or a standard ATX supply with newer PCIe 5.1 compatibility, these picks cover the main variations in size, efficiency, and connectivity found in the current market.
How each alternative compares
Thermaltake Toughpower iRGB Plus 750W Gold PSU
The Thermaltake Toughpower iRGB Plus 750W Gold offers a significantly smaller footprint than the be quiet! unit, measuring 5.9 by 6.3 inches. It uses a 140mm fan and provides app-controlled RGB lighting, which the standard be quiet! model lacks. You trade 80 PLUS Platinum efficiency for Gold rating, but gain a 10-year warranty. This unit suits builders who prioritize compact size and customizable aesthetics over maximum energy efficiency and silent operation.
Golden Field 750W SFX Platinum PSU
The Golden Field 750W SFX Platinum is designed for small form factor builds, contrasting sharply with the standard ATX size of the be quiet! power supply. It features a 12V-2x6 connector for modern GPUs and supports ATX 3.1 standards. While it matches the Platinum efficiency rating, its compact 3.94 by 4.92 inch dimensions make it ideal for ITX cases. You choose this if you need high efficiency in a tight space with the latest connector technology.
Corsair RM750x Shift White 750W ATX Power Supply
The Corsair RM750x Shift 750W ATX supports ATX 3.1 and PCIe 5.1 standards, offering side-mounted connectors for easier cable management. It is Gold rated, which is one step below the Platinum efficiency of the be quiet! unit. The Corsair unit is slightly smaller in height. You should pick this alternative if you value modern connector placement and future-proofing over the highest possible efficiency rating and the specific silent fan design of the be quiet! model.
EVGA SuperNOVA 750 G2 750W Power Supply
The EVGA SuperNOVA 750 G2 is a Gold-rated unit that matches the 750W output but differs in efficiency tier. It includes a 10-year warranty, providing long-term reliability assurance. The EVGA unit is a standard ATX size, similar in form factor to the be quiet! power supply. You might choose this if you prefer a different brand reputation and a long warranty period, accepting the lower Gold efficiency rating in exchange for proven reliability in standard desktop builds.
EVGA SuperNOVA 750W Platinum PSU
The EVGA SuperNOVA 750W Platinum matches the 80 PLUS Platinum efficiency rating of the be quiet! unit, ensuring similar energy savings. It features a 10-year warranty and fully modular cables. The EVGA unit is slightly more compact in length and height. You should select this alternative if you want comparable efficiency and modularity but prefer a different brand with a strong track record for reliability and clean cable management in standard ATX cases.
SilverStone 700W SFX 80 Plus Gold Power Supply
The SilverStone 700W SFX Gold is built for small form factor PCs, unlike the standard ATX be quiet! power supply. It delivers 700W of power, which is 50W less than the be quiet! unit. The efficiency rating is Gold, lower than the Platinum rating of the original. You should choose this if you are building in a compact case where space is the primary constraint, and you can accept slightly lower wattage and efficiency for a smaller physical footprint.
Quick picks
Our 7 picks
be quiet! Straight Power 11 Platinum 750W
Best for: Silent, high-efficiency standard ATX builds
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Platinum
- Modularity
- Fully modular
- Fan Size
- 135mm
- Dimensions
- 13 × 9.75 × 4 inches
- Weight
- 3.75 pounds
View on Amazon: be quiet! Straight Power 11 Platinum 750W Affiliate link
The be quiet! Straight Power 11 Platinum delivers 750W of power with 80 PLUS Platinum efficiency, reaching up to 93.7% efficiency. It features a fully modular design and a virtually inaudible 135mm Silent Wings 3 fan. This unit suits builders who prioritize high efficiency and quiet operation in a standard ATX form factor.
Pros
- 80 PLUS Platinum efficiency rating up to 93.7%
- Fully modular cable design for clean builds
- 135mm Silent Wings 3 fan for low noise
- Wire-free DC side for improved cooling
Cons
- Standard ATX size may not fit small form factor cases
- Heavier build at 3.75 pounds compared to SFX alternatives
- No mention of ATX 3.0 compliance in this specific variant
Good fit if
- You need high efficiency for lower electricity costs
- You prioritize silent operation in your build
- You have a standard ATX case with ample space
Skip if
- You are building a compact SFF PC
- You require ATX 3.0 native support
- You need a lighter power supply for easy transport
Verdict: be quiet! Straight Power 11 750W Platinum is ideal for enthusiasts seeking maximum efficiency and silence in a standard desktop case. It fits users who value quiet performance over compact size or the latest connector standards.
Thermaltake Toughpower iRGB Plus 750W Gold PSU
Best for: RGB enthusiasts wanting app control
- Wattage
- 750W
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- ATX Version
- ATX12V V2.4
- Fan Size
- 140mm
- Warranty
- 10 Year
View on Amazon: Thermaltake Toughpower iRGB Plus 750W Gold PSU Affiliate link
The Thermaltake Toughpower iRGB Plus 750W is a fully modular power supply with an 80 Plus Gold efficiency rating. It features a 140mm fan with 18 addressable RGB LEDs and supports ATX12V V2.4 standards. You get a 10-year warranty and smart zero fan technology that activates at 30% load. This unit suits builders who want customizable lighting and app-based monitoring for their system components.
Pros
- 80 Plus Gold efficiency rating for reliable power delivery
- Fully modular cable design for clean builds
- 10-year warranty coverage
- 140mm RGB fan with 18 addressable LEDs
- App control for fan speed and lighting effects
Cons
- 80 Plus Gold rating is lower than Platinum options on this list
- Lacks native support for the latest ATX 3.0 standard
- Heavier at 5 pounds compared to standard units
Good fit if
- You want full control over RGB lighting via mobile app
- You need a fully modular unit with a long warranty
- You prefer a 140mm fan for quieter operation at low loads
Skip if
- You require the highest Platinum efficiency rating available
- You need native ATX 3.0 compatibility for modern GPUs
- You want a completely silent unit without any RGB lighting
Verdict: Thermaltake Toughpower iRGB Plus 750W Gold is a solid choice for users who prioritize customizable RGB lighting and app monitoring over maximum efficiency ratings. It fits builders who want a long warranty and a quiet 140mm fan.
Golden Field 750W SFX Platinum PSU
Best for: Compact ITX builds with modern GPUs
- Wattage
- 750W
- Efficiency Rating
- 80+ Platinum
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 9cm
View on Amazon: Golden Field 750W SFX Platinum PSU Affiliate link
This Golden Field unit is a compact 750W SFX power supply designed for small form factor builds. It features an 80 Plus Platinum efficiency rating and supports ATX 3.1 standards. The key highlight is the native 12V-2x6 connector, which handles PCIe 5.1 GPU power spikes up to 300%. It includes fully modular cables and a 9cm fan for quiet operation in tight ITX cases.
Pros
- Native 12V-2x6 connector for PCIe 5.1 GPUs
- 80 Plus Platinum efficiency at 50% load
- Compact SFX size fits ITX cases
- Supports 300% instantaneous power spikes
Cons
- Smaller 9cm fan may spin louder under heavy load
- Limited to 750W capacity for high-end builds
- No mention of smart monitoring or app control
Good fit if
- You are building a compact ITX PC
- You need a native 12V-2x6 connector
- You prioritize high efficiency in a small case
Skip if
- You require a standard ATX form factor
- You need more than 750W of power
- You want a larger 120mm fan for silence
Verdict: Golden Field 750W SFX 12V-2x6 is the right choice for builders who need a compact, high-efficiency power supply with modern GPU connectivity. It fits perfectly in small cases where space is tight but power demands are high.
Corsair RM750x Shift White 750W ATX Power Supply
Best for: Standard ATX builds needing side-mounted connectors
- 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 offers 750W of power with 80 Plus Gold efficiency. It features side-mounted modular connections and ATX 3.1 certification for modern PCIe 5.1 support. The 140mm fan ensures quiet operation. This unit suits builders who want clean cable management and future-proof connectivity in a standard ATX form factor.
Pros
- Side-mounted modular connectors for easier cable access
- ATX 3.1 and PCIe 5.1 certified
- 140mm fluid dynamic bearing fan
- Fully modular design with micro-fit cables
Cons
- Standard ATX size may not fit small cases
- 80 Plus Gold rating is lower than Platinum competitors
- Requires specific Corsair Type 5 Gen 1 cables
Good fit if
- You need side-mounted connectors for cleaner builds
- You are building with ATX 3.1 compatible components
- You prefer a 140mm fan for quieter operation
Skip if
- You require a Platinum efficiency rating
- You are building in a small form factor case
- You want universal modular cable compatibility
Verdict: The Corsair RM750x Shift 750W ATX is a practical choice for standard ATX builds that benefit from side-mounted connections and modern power standards. It fits users prioritizing cable management ease and ATX 3.1 support over maximum efficiency ratings.
EVGA SuperNOVA 750 G2 750W Power Supply
Best for: Standard ATX builds needing reliability
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- Fan Size
- 140mm
- Warranty
- 10 Year
- Dimensions
- 7 × 5.9 × 3.4 inches
View on Amazon: EVGA SuperNOVA 750 G2 750W Power Supply Affiliate link
The EVGA SuperNOVA 750 G2 is a fully modular power supply rated for 750W. It holds an 80 PLUS Gold certification, reaching up to 90% efficiency under typical loads. The unit features a 140mm double ball bearing fan and Japanese brand capacitors for reliability. It includes comprehensive protections like OVP and UVP. This model offers a 10-year warranty and measures 7 inches in length.
Pros
- 80 PLUS Gold efficiency rating
- Fully modular cable design
- 10-year warranty coverage
- 140mm double ball bearing fan
Cons
- Lacks Platinum efficiency rating
- No RGB lighting features
- Standard ATX form factor size
Good fit if
- You need reliable 750W output
- You want a long warranty
- You prefer fully modular cables
Skip if
- You require Platinum efficiency
- You need RGB lighting effects
- You are building a small form factor PC
Verdict: EVGA SuperNOVA 750 G2 Gold suits users who prioritize efficiency and warranty length over aesthetic lighting or compact dimensions. It is a solid choice for standard ATX builds.
EVGA SuperNOVA 750W Platinum PSU
Best for: Standard ATX builds needing high efficiency
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Platinum
- Modularity
- Fully Modular
- Fan Size
- 140mm
- Warranty
- 10 Year
- Dimensions
- 6.5 × 5.91 × 3.3 inches
View on Amazon: EVGA SuperNOVA 750W Platinum PSU Affiliate link
The EVGA SuperNOVA 750 P2 delivers 750W of fully modular power with 80 PLUS Platinum efficiency. It uses Japanese capacitors and a 140mm double ball bearing fan for reliability. The unit includes a 10-year warranty. This PSU suits builders seeking high efficiency and long-term support for standard ATX cases.
Pros
- 80 PLUS Platinum certification for high efficiency
- Fully modular cable design reduces clutter
- 10-year warranty coverage
- 140mm double ball bearing fan
Cons
- Heavier at 5.95 pounds than some competitors
- No RGB lighting features included
- Standard ATX size may not fit SFX cases
Good fit if
- You need high efficiency for a standard ATX build
- You want a fully modular setup for clean cable management
- You prefer long warranty coverage
Skip if
- You are building in a small form factor case
- You want RGB lighting effects
- You need a quieter fan than 140mm double ball bearing
Verdict: EVGA SuperNOVA 750 P2 80 Plus Platinum offers strong efficiency and a long warranty for standard ATX builds. It fits users who prioritize reliability and clean cable management over size or aesthetics.
SilverStone 700W SFX 80 Plus Gold Power Supply
Best for: small form factor PC builds
- Wattage
- 700W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- Fan Size
- 92mm
- Form Factor
- SFX
- Dimensions
- 4.92 × 3.94 × 2.5 inches
View on Amazon: SilverStone 700W SFX 80 Plus Gold Power Supply Affiliate link
This SilverStone unit is a fully modular SFX power supply rated for 700W. It carries an 80 PLUS Gold efficiency rating and uses a 92mm fan for silent operation. The design features all Japanese capacitors and a single +12V rail with strict voltage regulation. It fits small form factor cases but does not support ATX mounting holes.
Pros
- 80 PLUS Gold efficiency rating
- Fully modular cable design
- 92mm fan for quiet running
- Single +12V rail with low ripple
Cons
- Lower 700W output compared to 750W competitors
- Incompatible with standard ATX mounting holes
- 92mm fan may spin louder under heavy load
Good fit if
- You need a compact SFX power supply
- You prioritize high efficiency in a small case
- You want fully modular cables for clean builds
Skip if
- You require 750W or higher wattage
- You are building a standard ATX case
- You need Platinum efficiency certification
Verdict: SilverStone 700W SFX Gold PSU is a solid choice for small form factor builds that need reliable efficiency. It fits users who value compact size and modularity over maximum wattage.
Specifications side by side
| Spec | be quiet! Straight Power 11 Platinum 750W | Thermaltake Toughpower iRGB Plus 750W Gold PSU | Golden Field 750W SFX Platinum PSU | Corsair RM750x Shift White 750W ATX Power Supply | EVGA SuperNOVA 750 G2 750W Power Supply | EVGA SuperNOVA 750W Platinum PSU | SilverStone 700W SFX 80 Plus Gold Power Supply |
|---|---|---|---|---|---|---|---|
| Wattage | 750W | 750W | 750W | 750W | 750W | 750W | 700W |
| Efficiency Rating | 80 PLUS Platinum | 80+ Gold | 80+ Platinum | 80 Plus Gold | 80 PLUS Gold | 80 PLUS Platinum | 80 PLUS Gold |
| Modularity | Fully modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular |
| ATX Version | not stated | ATX12V V2.4 | ATX 3.1 | ATX 3.1 | not stated | not stated | not stated |
| PCIe Connector Type | not stated | not stated | 12V-2x6 | not stated | not stated | not stated | not stated |
| Fan Size | 135mm | 140mm | 9cm | 140mm | 140mm | 140mm | 92mm |
| Warranty | not stated | 10 Year | 10-Year | not stated | 10 Year | 10 Year | not stated |
| Form Factor | not stated | not stated | ATX | ATX | not stated | not stated | SFX |
| PCIe Version | not stated | not stated | PCIe 5.1 | PCIe 5.1 | not stated | not stated | not stated |
| Connector | not stated | not stated | 12V-2x6 Connector | not stated | not stated | not stated | not stated |
| Size | 750W | 750W | 750W | 750W | 750W | 750W | 700W |
| Device Compatibility | not stated | not stated | PCs | not stated | not stated | not stated | not stated |
| Dimensions | 13 × 9.75 × 4 inches | 6.3 × 5.9 × 3.4 inches | 4.92 × 3.94 × 2.52 inches | 6.3 × 5.91 × 3.39 inches | 7 × 5.9 × 3.4 inches | 6.5 × 5.91 × 3.3 inches | 4.92 × 3.94 × 2.5 inches |
| Weight | 3.75 pounds | 5 pounds | 1.98 pounds | 3.75 pounds | 6.6 pounds | 5.95 pounds | 3.09 pounds |
| Color | Black | Gold | Black | White | not stated | Black | Black?Lead-Free Paint? |
| Model | BN642 | PS-TPI-0750F3FDGU-1 | VP750 | CP-9020273-NA | 220-G2-0750-XR | 220-P2-0750-X1 | SST-SX700-G |
If you need heavy backup power, review champion power equipment champion 11 alternatives for continuous output ratings.
Frequently asked questions
Which PSU is best for silent builds?
The be quiet! Straight Power 11 Platinum 750W is the top choice for silence. It features a large 135mm fan and delivers 80 PLUS Platinum efficiency. This combination ensures quiet operation while maintaining high performance for standard desktop cases. It is ideal for enthusiasts who prioritize low noise levels over compact dimensions.
What is the smallest SFX option available?
The Golden Field 750W SFX Platinum is a compact option for small builds. It measures 3.94 by 4.92 inches and includes a 12V-2x6 connector for modern GPUs. This unit supports ATX 3.1 standards and offers 80 PLUS Platinum efficiency. It fits perfectly in tight spaces where high power is needed.
Which unit supports the latest ATX 3.1 standard?
Two units support ATX 3.1: the Golden Field 750W SFX Platinum and the Corsair RM750x Shift. The Golden Field is an SFX form factor with a 12V-2x6 connector. The Corsair is a standard ATX size with side-mounted connectors. Both are fully modular and support PCIe 5.1 for modern graphics cards.
Is there a white PSU option?
Yes, the Corsair RM750x Shift is available in white. It is a fully modular 750W unit with 80 PLUS Gold efficiency. It supports ATX 3.1 and features side-mounted connections for easier cable management. This model is practical for standard ATX builds where aesthetics and modern standards are priorities.
Which PSU has the longest warranty?
Several models offer a 10-year warranty, including the Thermaltake Toughpower iRGB Plus, Golden Field 750W SFX, EVGA SuperNOVA 750 G2, and EVGA SuperNOVA 750W Platinum. These units provide long-term coverage for your investment. The Thermaltake model also includes app control and RGB lighting for added customization.
What is the lightest power supply on the list?
The Golden Field 750W SFX Platinum is the lightest at 1.98 pounds. Its compact SFX design reduces weight significantly compared to standard ATX units. The SilverStone 700W SFX Gold is slightly heavier at 3.09 pounds. Both are suitable for small form factor builds where weight and size matter.
Which unit is best for RGB enthusiasts?
The Thermaltake Toughpower iRGB Plus 750W Gold is designed for RGB customization. It features app-controlled lighting and includes a 140mm fan for quiet operation. This unit is fully modular and offers 80 PLUS Gold efficiency. It is ideal for builders who want visual customization alongside solid performance.
Which PSU is best for budget-conscious builders?
The Corsair RM750x Shift is positioned as a practical budget-friendly option. It offers 80 PLUS Gold efficiency and ATX 3.1 support. The side-mounted connectors simplify cable management in standard cases. It balances modern standards with affordability, making it a solid choice for standard ATX builds.