Brand: SeaSonic · SKU: SS-300ET · MPN: SS-300ET · Category: Components
The SeaSonic SS-300ET Bronze power supply is designed for value-conscious users, certified 80 PLUS Bronze for efficiency up to 85% at 50% load. It features 300W of total output power, Active PFC (Power Factor Correction) with 99% typical correction, and conforms to the ATX 12V v2.3 specification. It includes a double forward converter circuit, supports the latest Intel & AMD Sockets, and is PCI-Express & Serial ATA ready. Reliability features include short circuit protection on all outputs, over voltage protection, and over power protection. Cooling is managed by a 120mm fan with super low noise control. It has received multiple safety and EMI/RFI approvals including CUL, TUV, CB, CCC, CE, FCC, and RoHS compliance. The dimensions are 5.9 x 5.5 x 3.4 inches (150 x 140 x 86 mm).
| PFC | Active, 99% typical |
|---|---|
| MTBF | >100,000 Hours |
| +12V Rails | 2 (For one listing: +12V1@17A, +12V2@17A; For another: +12V @ 24A) |
| Input Voltage | 100~240 V |
| Maximum Power | 300 W |
| Cooling System | 1x 120 mm Fan with super low noise control |
| Main Connector | 1x 20+4pin |
| Form Factor/Spec | ATX12V Ver.2.3 |
| Other Connectors | 1x 4pin Power Connector (P4), 4x 4pin Peripheral Connector, 1x Floppy Connector |
| SATA Power Connector | 4 |
| Input Frequency Range | 47 ~ 63 Hz |
| PCI-Express Connector | No |
| Efficiency Certification | 80 PLUS BRONZE |
| Warranty | 3 years limited (parts and labor) according to Newegg listings. |
| Weight | N/A |
| Dimensions | 5.9" x 5.5" x 3.4" (150 x 140 x 86 mm) |
The SeaSonic SS-300ET Bronze power supply is a 300W unit featuring 80 PLUS Bronze certification, Active PFC, and ATX12V v2.3 compliance. It is geared towards value and efficiency for home or office systems, offering protections like short circuit, over voltage, and over power. It utilizes a quiet 120mm fan for cooling and includes essential connectors like 20+4 pin main power and 4 SATA connectors. It does not include a PCIe connector.
Yes, this SeaSonic SS-300ET 300W 80PLUS Bronze ATX12V Power Supply (SS-300ET) is 100% genuine SeaSonic hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This SeaSonic SS-300ET 300W 80PLUS Bronze ATX12V Power Supply includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the SS-300ET.