Seasonic

Seasonic PRIME PX-500 500W Fanless Power Supply - PX-500 - ATX, 80+ Platinum, Fully Modular

SKU 30989 Brand Seasonic EAN13 4711173875598
Seasonic PRIME PX-500 500W fanless ATX power supply with fully modular cabling, 80 PLUS Platinum efficiency, passive cooling, and standard ATX connectivity.
PSU (Power Supplies) - Efficiency Rating 80+ Platinum
PSU (Power Supplies) - ATX Standard ATX 2.x
PSU (Power Supplies) - Modularity Fully modular
PSU (Power Supplies) - PCIe GPU Connectors 12V-2x6 (revised)
PSU (Power Supplies) - EPS CPU Connectors 2x8-pin
PSU (Power Supplies) - Length less than or equal to140 mm

The PRIME Fanless PX series utilizes the fanless technology, which eliminates the fan noise completely, ensuring truly quiet operation. The unit not only is rated to be 80PLUS Platinum efficient, but it also has the highest power output on the fanless power supply market at the moment. The power supply is ideal any situations that demand silence from the equipment. The high quality components inside and the innovative circuit design result in clean and stable power output. The fully modular cables allow for better cable management in the computer case.

80 PLUS® Platinum
The PRIME Platinum Series achieves 80 PLUS® Platinum certification with its 92 % efficiency at 50 % system load.

Micro Tolerance Load Regulation
Seasonic’s latest design keeps the output voltage within a very tight range, achieving under 0.5 % load regulation. This impressive electrical performance and stability makes this power supply an ideal choice for high-performance systems.

Seasonic Fanless Design
Cooling fans inside the power supply are replaced by passive cooling based on heat dissipation. Silent operation does not only provide a more pleasant working environment but it also results in less power consumption and lower utility bills.


Total power500 W
AC input voltage100 - 240 V
AC input frequency50 - 60 Hz
Input current4 - 7 A
Combined power (+3.3V)100 W
Combined power (+12V)492 W
Combined power (+5V)100 W
Combined power (-12V)3.6 W
Combined power (+5Vsb)15 W
Max output current (+3.3V)20 A
Max output current (+12V)37 A
Max output current (+5V)20 A
Max output current (-12V)0.3 A
Max output current (+5Vsb)3 A
Power protection featuresOver current, Over power, Over voltage, Short circuit, Under voltage
Motherboard power connector20+4 pin ATX
Motherboard power cable length61 cm
Number of SATA power connectors2
SATA power cable length810, 860 mm
Peripheral (Molex) power connectors (4-pin)2
Peripheral (Molex) power cable length470, 690 mm
PCI Express power connectors (6+2 pin)2
PCI Express power cable length75 cm
CPU power cable length65 cm
CPU power connectors (8-pin)2
Cabling typeFully-Modular
80 PLUS certification80 PLUS Platinum
Supported motherboard form factorsATX
PurposePC
Power supply unit (PSU) form factorATX
Mean time between failures (MTBF)150000 h
Product colourBlack
Cooling typePassive
On/off switchYes
Operating temperature (T-T)0 - 50 °C
Compliance certificatesRoHS
CertificationcTUVus, TUV, CB, CCC, BSMI, EAC, CE, WEEE, ErP Lot 6, REACH
Width150 mm
Depth140 mm
Height86 mm
Sustainability certificatesENERGY STAR