M1U Brown Box – Switch mode power supply ATX 12 V v2.31 and EPS 12 V

This is a Seasonic industrial power supply meeting important EMI, EMC and safety standards. This unit is ATX 12 V v.2.31 and EPS 12 V compliant with DC to DC converter design and important protection features. It features Active PFC (Power Factor Correction) circuit design and is 80 PLUS® Gold efficiency rated, meaning that at 115 V AC input the unit can achieve up to 90 % efficiency at 50 % load. This industrial power supply is built with quality and reliability in mind.

Form factor: EPS 1U
Dimensions: 190 mm (7.5 in) (W) x 81.5 mm (3.2 in) (L) x 40.5 mm (1.6 in) (H)
Safety: CUL, TUV, CB
EMI/RFI: CE, FCC, C-tick


  • Support the latest Intel & AMD Socket
  • DC to DC converter design
  • High efficiency and reliability
  • Low ripple & noise
  • Super low noise fan control
  • Short circuit protection on all outputs
  • Over voltage protection
  • Over power protection
  • 100% hi-pot test
  • 100% burn in, high temperature cycled on/off
  • 3-Year Warranty

DC Output AC Input: 100~240Vac 50/60Hz
Model 3.3 V 5 V 12 V -12 V 5 Vsb Total Power
SS-350M1U Brown Box 12 A 16 A 29 A 0.3 A 2 A 350 W
80 W 348 W
SS-300M1U Brown Box 10 A 14 A 25 A 0.3 A 2 A 300 W
70 W 300 W

TGM Brown Box – Switch mode power supply TFX 12 V (v2.31)

This Seasonic industrial switch mode power supply is TFX 12 V v.2.31 compliant and offers 80 PLUS® Gold rating. Its super low noise fan control, DC to DC converter design and vital protection features guarantee high quality and safe operations. This unit is a dependable source for a wide range of setups with its full range of input and output electrical features.

Form factor: TFX
Dimensions: 175 mm (6.9 in) (W) x 85 mm (3.3 in) (L) x 63.5 mm (2.5 in) (H)
Safety: CUL, TUV, CB
EMI/RFI: CE, FCC, C-tick


  • Support the latest Intel & AMD Socket
  • DC to DC converter design
  • High efficiency and reliability
  • Low ripple & noise
  • Super low noise fan control
  • Short circuit protection on all outputs
  • Over voltage protection
  • Over power protection
  • 100% hi-pot test
  • 100% burn in, high temperature cycled on/off
  • 3-Year Warranty

DC Output AC Input: 100~240Vac 50/60Hz
Model 3.3 V 5 V 18 V 18 V 5 Vsb Total Power
SS-350TGM Brown Box 12 A 16 A 29 A 0.3 A 2 A 350 W
80 W (combined) 348 W

L1U Brown Box – Switch mode power supply Intel EPS 12 V

This is an EPS 12 V industrial switch mode power supply with 80 PLUS® Gold efficiency rating. The series comes in two power versions; 500 Watts and 400 Watts. This unit has fully modular cabling and it meets important EMI, EMC and safety standards and with many protection features it is considered to be very safe. With its stability and quality electrical components it is a very reliable and power supply for any kind of industrial application.

Form factor: EPS 1U
Dimensions: 235 mm (9.3 in) (W) x 100 mm (3.9 in) (L) x 40 mm (1.6 in) (H)
Safety: CUL, TUV, CB
EMI/RFI: CE, FCC


  • DC to DC converter design
  • High efficiency and reliability
  • Low THD
  • Low ripple & noise
  • Seasonic S3FC (including Fanless mode)
  • Short circuit protection on all outputs
  • Over voltage protection
  • Over power protection
  • 100% hi-pot test, 100% burn in, high temperature cycled on/off
  • 3-Year Warranty

DC Output AC Input: 100~240Vac 50/60Hz
Model 3.3 V 5 V 12 V -12 V 5 Vsb Total Power
SS-500L1U Brown Box 20 A 20 A 40 A 0.3 A 2.5 A 500 W
100 W 480 W
SS-400L1U Brown Box 20 A 20 A 30 A 0.3 A 2.5 A 400 W
70 W 384 W

L2U Brown Box – Switch mode power supply Intel EPS 12 V

The Seasonic industrial power supplies with 80 PLUS® Gold efficiency rating achieve up to 90 % efficiency at 50 % load at 115 V AC input. These L2U models are protected against short circuit, over voltage and over power surges and they meet important EMI, EMC and safety standards. These are highly reliable products that are customizable with fully modular cables and are quiet due to the built-in fan control.

Form factor: EPS 1U
Dimensions: 245 mm (9.6 in) (W) x 100 mm (3.9 in) (L) x 70 mm (2.7 in) (H)
Safety: CUL, TUV, CB
EMI/RFI: CE, FCC, C-tick


  • DC to DC converter design
  • High efficiency and reliability
  • Low THD
  • Low ripple & noise
  • Seasonic S3FC (including Fanless mode)
  • Short circuit protection on all outputs
  • Over voltage protection
  • Over power protection
  • 100% hi-pot test, 100% burn in, high temperature cycled on/off
  • 3-Year Warranty

DC Output AC Input: 100~240Vac 50/60Hz
Model 3.3 V 5 V 12 V -12 V 5 Vsb Total Power
SS-500L2U Brown Box 20 A 20 A 40 A 0.3 A 2.5 A 500 W
100 W 480 W
SS-400L2U Brown Box 20 A 20 A 30 A 0.3 A 2.5 A 400 W
80 W 384 W