Features & Benefits
- Seasonic industrial power supply
- ATX 12 V v.2.31 and EPS 12 V compliant
- Active PFC circuit design
- 80 PLUS Gold efficiency rated
- Built with quality and reliability in mind
- Home Page /
- Electronics /
- Computer Accessories /
- Computer Components /
- Computer Internal Components /
- Internal Power Supplies /
- Seasonic SSP-300SUG 300W 80 PLUS Gold Flex AT...
0 ratings
Item #:
11122383
Seasonic SSP-300SUG 300W 80 PLUS Gold Flex ATX12V Power Supply w/ Active PFC
Item #:
11122383
MMK 509773
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Friday, August 28
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
This industrial power supply is built with quality and reliability in mind.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Efficiency Rating
Achieves 80 PLUS Gold certification, ensuring superior energy efficiency and reduced electricity bills, making it a cost-effective choice for high-performance builds.
Compact Design
The Flex ATX12V form factor provides flexibility for small enclosures, catering specifically to compact systems without compromising power capabilities.
Reliable Performance
Includes Active PFC for stable power delivery and enhanced system reliability, addressing common issues with lower-quality power supplies.
Product Details
- Seasonic SSP-300SUG 300W 80 PLUS Gold Flex ATX12V Power Supply with Active PFC
- Meets important EMI, EMC, and safety standards for industrial use
- ATX 12 V v.2.31 and EPS 12 V compliant with DC to DC converter design
- Features Active PFC circuit design and 80 PLUS Gold efficiency rating
- Delivers up to 90% efficiency at 50% load with high quality and reliability
- Specifications: Total continuous power 300W, Inrush current at cold start 100A max, Efficiency >87%, Warranty: 3 Years
| Compatible Devices | Personal Computer |
| Connector Type Used on Cable | ATX |
| Output Wattage | 300 Watts |
| Form Factor | ATX |
| Wattage | 300 watts |
| Cooling Method | Air |
| Number of Fans | 2 |
| Maximum Input Voltage | 115 Volts |
| Minimum Input Voltage | 115 Volts |
| System Bus Connector Type | ATX |
| Model Name | SSP-300SUG |
| Brand | Seasonic |
| Manufacturer | Seasonic |
| UPC | 793945887507 809399665186 742128156664 805893728785 726085296335 |
| Mfr Part Number | SSP-300SUG |
| Model Number | SSP-300SUG |
| Connector Type | ATX |
| Fan Count | 2 |
| Item Weight | 3 lbs (1.36 kg) |
Who Should Buy?
-
Budget Builders
Ideal for users building budget systems where efficiency and cost-effectiveness are priorities without sacrificing quality.
-
Compact PCs
Perfect for small form factor builds needing a compact, efficient power supply with reliable performance.
-
Energy Savers
Great for eco-conscious users seeking an efficient power supply with a high 80 PLUS Gold certification for lower energy costs.
-
High-Performance Users
Not suitable for users requiring high wattage for demanding components like multiple GPUs or extensive overclocking.
Product Description
Seasonic SSP-300SUG 300W 80 PLUS Gold Flex ATX12V Power Supply w/ Active PFC
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the efficiency rating of the Seasonic SSP-300SUG power supply?
Answer: The Seasonic SSP-300SUG boasts an 80 PLUS Gold efficiency rating. This means it operates at over 90% efficiency under typical loads, significantly reducing wasted energy and heat generation. High efficiency is crucial for users who want to minimize electricity costs and improve system stability. For instance, if you're building a gaming PC or a workstation, this power supply will help maintain optimal performance while keeping your energy consumption in check. -
Question:
What type of systems is the Seasonic SSP-300SUG suitable for?
Answer: The Seasonic SSP-300SUG is ideal for compact builds and systems with moderate power demands, such as budget gaming rigs or office PCs. With its 300W output, it's perfect for setups utilizing low to mid-range CPUs and GPUs. Additionally, its flexible ATX12V form factor fits easily in various cases. For example, if you're building a mini-ITX gaming system, this power supply ensures you have enough power without excess bulk. -
Question:
Does the Seasonic SSP-300SUG support modular cables?
Answer: No, the Seasonic SSP-300SUG is a non-modular power supply. This configuration means that all cables are fixed, which can streamline assembly and reduce the number of loose cables in your case. While modular supplies allow for personalized cable management, many users prefer this fixed design for its simplicity during installation. It suits cases with good cable management options, ensuring a clean look without extra hassle. -
Question:
What safety features does the Seasonic SSP-300SUG include?
Answer: The Seasonic SSP-300SUG incorporates multiple safety features, including overvoltage protection, undervoltage protection, short circuit protection, and overcurrent protection. These features provide peace of mind, protecting your components from potential damage due to power supply failures. For instance, if a surge occurs, these safeguards prevent your sensitive hardware from being affected, making it a reliable choice for your next build. -
Question:
Is the Seasonic SSP-300SUG suitable for overclocking?
Answer: While the Seasonic SSP-300SUG can handle standard configurations, overclocking may exceed its 300W capacity, leading to instability. For users planning to overclock, it is generally advisable to opt for a higher wattage power supply to ensure stable and adequate power delivery. If you're upgrading an existing system or planning heavy usage, consider a power supply with a higher wattage for maximum reliability. -
Question:
What is Active PFC, and why is it important?
Answer: Active PFC (Power Factor Correction) allows the Seasonic SSP-300SUG to draw power more efficiently from the electrical grid. This technology reduces energy waste and enhances power quality, which in turn minimizes noise and harmonics in your system. It's particularly important in high-performance setups as it contributes to system longevity and energy efficiency. If you're building a system that runs continuously, this feature is vital for maintaining optimal performance. -
Question:
Does the Seasonic SSP-300SUG come with a fan, and how loud is it?
Answer: Yes, the Seasonic SSP-300SUG is equipped with a quiet 120mm fan that ensures effective cooling while maintaining low noise levels. This fan operates efficiently, providing adequate airflow while remaining unobtrusive during typical use. If you're using this power supply in a quiet work environment or in a home theater PC setup, the fan's quiet operation is a significant advantage that keeps the listening experience comfortable. -
Question:
What connectors does the Seasonic SSP-300SUG include?
Answer: The Seasonic SSP-300SUG comes with a variety of connectors, including a 24-pin main power connector, a 4+4 CPU power connector, and multiple SATA and peripheral connectors. This array of connectors makes it compatible with a wide range of components, allowing users to easily connect their motherboards, drives, and cooling systems. This versatility is essential for accommodating both current and future upgrades in your build. -
Question:
How does the Seasonic SSP-300SUG compare to other power supplies in its class?
Answer: The Seasonic SSP-300SUG stands out in its class due to its 80 PLUS Gold efficiency and robust safety features, making it a reliable choice. Compared to other entry-level power supplies, it provides better energy efficiency, leading to lower operational costs over time. Additionally, if you're looking for performance combined with value, this power supply's design is tailored to address both needs in a compact form factor. -
Question:
Where can I buy the Seasonic SSP-300SUG power supply in Myanmar?
Answer: You can purchase the Seasonic SSP-300SUG 300W 80 PLUS Gold Flex ATX12V Power Supply with Active PFC on Ubuy. Ubuy provides a seamless shopping experience with a wide range of electronic components, including this efficient power supply. Just visit their website and search for the product to start your purchase process easily.
Seasonic Internal Power Supplies SSP-300SUG Editorial Review
The Seasonic SSP-300SUG 300W Flex ATX 80 Plus Gold Active PFC Power Supply is a small and compact PSU that is perfect for test-benching and SFF builds. It comes from a well-respected brand, Seasonic, known for their high-quality server power supplies. One downside of this power supply is that it lacks a power switch. Additionally, the cable bundle is quite short, making it necessary to purchase additional adapters for compatibility with most ATX-spec boards and cases. However, it's important to note that this PSU is not intended for use with standard boards or cases. The packaging of the product can be improved, as some customers reported receiving the PSU with slight damage. Additionally, some customers mentioned that the PSU did not come with a power cable, requiring them to use one from another device. On the positive side, customers reported that the PSU worked great with their Intel X270 boards and praised its quiet operation. The unit includes various connectors, including 1x 24-pin ATX, 2x 4-pin PCIe (which can be combined to form 1x 8-pin), 3x SATA, 1x 4-pin Molex, and 1x 4-pin floppy. It's worth noting that the Seasonic SSP-250SUB model offers similar performance at a lower price point, making it a better option unless the extra 50 watts and slightly higher efficiency of the SSP-300SUG are necessary. Overall, customers were satisfied with the Seasonic SSP-300SUG 300W Flex ATX 80 Plus Gold Active PFC Power Supply. Its compact size, reputable brand, and efficient operation were praised. However, the lack of a power switch and short cable bundle were noted as downsides. Additionally, some customers had issues with packaging and missing accessories.
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Small and compact size
- High-quality brand
- Efficient operation
- Quiet fan
- Clever hinge on ATX 24-pin connector
Cons
- No power switch
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
MMK 509773
Order now and get it around Friday, August 28
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.