PickyPeacock
Sign in
SilverStone

SilverStone TX300 Spec and Price in the United States

80 Plus Bronze300WTFX

A TFX unit, which is a format most comparison sites skip entirely: 85mm wide and 175mm deep, shaped for slim office desktops and small cases that will take neither an ATX nor an SFX power supply. It is 80 PLUS Bronze, cooled by an 80mm fan from 18 dBA, and has fixed rather than modular cables — there is no room for a connector panel. A single PCIe 6-pin means it powers a small graphics card at most. Three-year warranty.

Current best price
$80.37at Amazon.com · captured 2026-09-02View at Amazon.com

Captured periodically and may have changed.

Price history · 300W

30D90D180DAll
  • 300W
April 11, 202629 capturestoday · $80.37

Each point is one capture, not a list price. How we track prices

Specifications

Wattage
Efficiency
80 Plus Bronze
Form factor
TFX
Modular
Non-modular
Fan size
80 mm
Length
175 mm
SATA connectors
4
Noise
18 dBA
Warranty
3 years

Wattages

ConfigurationPart numberCurrent best price
300WSST-TX300
$80.37

at Amazon.com · captured 2026-09-02

Guides for this category

How much power supply you actually needHow to size a PSU from what the build really draws, why headroom buys efficiency and quiet rather than safety alone, and what 80 Plus does and does not promise.

Sources

Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.