Brand: Seasonic · SKU: SS-300ES · MPN: SS-300ES · Category: Components
The Seasonic SS-300ES series switch-mode power supply has a power rating of 300W and features Active PFC F3 circuitry. It is 80 PLUS Bronze certified for energy efficiency. It is compliant with ATX 12V v2.3 and supports modern Intel and AMD platforms. Protection features include Over Voltage Protection (OVP), Over Current Protection (OCP), Short Circuit Protection (SCP), and Over Power Protection (OPP). It utilizes a double forward converter circuit and features low ripple & noise with super low noise fan control. The unit has a dimension of 150mm (L) x 140mm (W) x 86mm (H) or 5.9" x 5.5" x 3.4" depending on the source/revision, and a weight of 1.4kg for one listed variant. The MTBF is rated greater than 100,000 hours at 25°C ambient load.
| Wattage | 300W |
|---|---|
| PFC Type | Active PFC F3 |
| Compliance | ATX 12V v2.3 |
| DC Outputs | +3.3V (18A), +5V (20A), +12V (24A), -12V (0.8A), +5Vsb (2.5A) |
| Form Factor | ATX (Based on connectors/compliance) |
| Combined +12V | 288 W |
| Input Voltage | Full range (100V-240V) |
| Input Frequency | 50 / 60 Hz |
| Efficiency Rating | 80 PLUS Bronze |
| Protection Features | OVP, OCP, SCP, OPP |
| Combined +3.3V & +5V | 120 W (max.) |
| Warranty | 3 years limited (Parts & Labor on one listing) |
| Weight | 1.4kg (one listed variant) |
| Dimensions | 150 mm (L) x 140 mm (W) x 86 mm (H) or 5.9" x 5.5" x 3.4" |
The Seasonic SS-300ES is a 300-Watt, 80 PLUS Bronze certified power supply featuring Active Power Factor Correction (PFC F3). It adheres to the ATX 12V v2.3 standard, offering robust protection features and high efficiency suitable for various system builds, especially where space and energy savings are considerations.
Yes, this Seasonic SS-300ES 300W ATX Power Supply (SS-300ES) 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-300ES 300W ATX 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-300ES.