Resonant Switching Circuit Design Compared to Two-Forward Switching, the more advanced Resonant Switching minimizes ‘switching loss’ reducing heat generation, and operates more efficiently by eliminating the need for an output inductor leading to outstanding stability and reliability.   80 PLUS® BRONZE Certified High Efficiency Design This power supply is 80 PLUS® Bronze certified with 87% maximum efficiency(230VAC, Typical Load) incorporating a high switching frequency & low power loss circuitry design, and guarantees higher efficiency compared to uncertified products. ※ 80 PLUS® BRONZE is an energy efficiency certification program administered by Ecos Consulting of the U.S.A.   Supports ATX12V v2.3 Incorporates the latest power supply design and supports many types of CPUs, motherboards, and graphic cards.   Dual Independent +12V DC Rails Dual +12VDC Rails supply power independently to the CPU, VGA, motherboard, and peripherals for stable operation of core components.   Dual Graphic Cards Support 6-Pin and 6+2-Pin PCI-E Connectors are provided for dual graphic card setups.   Ultra Quiet 120mm Fan An ultra quiet Hydro Bearing cooling fan increases airflow while minimizing noise for an ultra quiet computing environment.   Active PFC for Improved Power Factor & Reduced Harmonics By implementing Active PFC (Power Factor Correction), instead of Passive PFC with a Power Factor (PF) of 75%, the PF is improved up to 99% while harmful harmonic frequencies are reduced to meet the Line Harmonic Distortion Requirement of EC61000-3-2 Class D.   ATX20+4 Pin Mainboard Power Connector ATX20+4 Pin enhance compatibility for both 20-Pin and 24-Pin type motherboard power connectors.   Supports ATX12V CPU 4-Pin & EPS12V CPU 8-Pin Two ATX12V CPU 2+2 (4-Pin) power cables can be combined to form an EPS12V CPU 8-Pin power cable.   Multiple Safety Features Over-Voltage Protection, Over-Current Protection, Short-Circuit Protection, Under-Voltage Protection, and Over-Temperature Protection.   WEEE & RoHS Compliant ZM500-RS Complies with WEEE & RoHS environmental directives of the European Union. - WEEE (Waste Electrical and Electronic Equipment) - RoHS (Restriction of Hazardous Substances)   International Safety and EMC Certifications

Output Power Cable Specifications   [Cable Types and Functions]       Electrical & Physical Characteristics   AC Input Range Voltage 100VAC ~ 240VAC ±10% DC Output Frequency 50Hz~60Hz Output V. Output Load Rating Combined Power AC Input Current (Rated) 115VAC 8A Imin Imax Ipeak 230VAC 4A +3.3V 1A 24A 30A 130W 500W PFC Type Active PFC +5V 1A 24A 30A Power Factor 99% Maximum +12V1 1A 18A 22A 432W Inrush Current Limit (@ Cold start at 25°C) 115VAC 80A +12V2 1A 18A 22A 230VAC 60A -12V 0.0A 0.5A   21W Efficiency 87% Maximum @230VAC, Typical load +5VSB 0.02A 3A 3.5A DC Output Voltage Regulations Output V. Regulation Range At Full Load Protection Features +3.3VDC ±5% +3.14V~+3.47V Over Voltage Protection(OVP) +5VDC ±5% +4.75V~+5.25V Over Current Protection(OCP) +12V1DC ±5% +11.4V~+12.6V Short Circuit Protection(SCP) +12V2DC ±5% +11.4V~+12.6V Over Temperature Protection(OTP) -12VDC ±10% -10.8V~-13.0V Under Voltage Protection(UVP) +5VSB ±5% +4.75V~+5.25V Ambient Temperature DC Output Ripple & Noise Output V. Specification At Full Load Operation 10°C ~ +40°C +3.3VDC 100mV Storage -20°C ~ +80°C +5VDC 100mV Ambient Humidity +12V1DC 200mV Operation 5%RH ~ 95%RH +12V2DC 200mV Storage 5%RH ~ 95%RH -12VDC 200mV Dimensions +5VSB 100mV 140(L) x 150(W) x 86(H) mm

- One (1) Power Supply - Five (5) Cable Ties - Four (4) Fixing Bolts - One (1) AC Power Cable - One (1) User’s Manual

Zalman affixes a Computer Noise Prevention System (CNPS) mark to all components used for noiseless computers.

Plugging the main power connector P1 into the motherboard while the product is connected to the AC power source may result in damage to the motherboard. Make sure that the connectors are connected to their designated locations, and that the connectors are not oriented in the wrong direction when connecting the DC output connectors. If the Power On light fails to light up when the main power button is pressed after completing the installation procedure, then some devices may be plugged in incorrectly or the motherboard may be faulty.