FSP Twin 520W Standard ATX Mounting Redundant PSU - Suitable for Most 2U, 3U, 4U and Tower Chassis

FSP Twin 520W Standard ATX Mounting Redundant PSU - Suitable for Most 2U, 3U, 4U and Tower Chassis
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Frame: FSP500-70RGHBB1 Single Module: FSP520-20RGGBB1

Rated Output Power


Form Factor

PS2 ATX Redundant

80 PLUS Certification


Input Voltage

100-240 Vac (Full Range)

Input Current


Input Frequency

60-50 Hz


Active PFC



Fan Type

Dual ball bearing fan, 40 mm

Dimensions(Lx W x H)

150 x 86 x 190 mm




OCP/OVP/SCP/FFP(Fan Failure Protecti

Single Module Model No. : FSP520-20RGGBB1


AC Input

100-240Vac~  8-4A  50-60Hz

DC Output




Total Power


FSP Group Twins

Twins series is an ATX size redundant power supply, without front end bracket, especially designed for PS2 chassis. Equipped with two power supply modules that can work at the same time, give you double guarantees. No matter for startups, SMC business or home users, Twins series is a good power supply units for mail, web or home server. Hot swappable modules designs let users do not need to worry about server/PC power off situation anymore.

Server-grade & Stable
Power Supply Provider

FSP Group Twins Server-grade & Stable Power Supply Provider

Hot Core Fan Control adjusts its speed precisely to provide optimal cooling which contributed to the thermometer to be designed into the hottest transformer and measure the hot core temperature on the first line.

FSP Group Twins Hot Swappable Modules Design

Hot Swappable Modules Design

When a power module fails and the redundant unit takes over immediately, the damaged one can be replaced without stopping the operation. No need to worry about the risk of data disappearance or the disruption of system.

80 Plus® Gold Certification

FSP Group Twins 80 Plus® Gold Certification

Twins Series is a power supply with 80 PLUS® 230V Internal Gold Certification that guarantees to operate at a minimum of 90% efficiency at 50% load of PSU rated power and as a result to reduce lots of electricity cost.

FSP Intelligent Monitor Software

FSP Group Twins Intelligent Monitor Software

Users can use FSP Guardian software to monitor power input, power output, efficiency, and other internal records in real time and get the historical data within 30 days. When power input or output reaches the warning points during the process , FSP Guardian will immediately shows warning message to remind the latest situation of Twins.


Ideal for Home or Business Server

FSP Group Twins Ideal for Home or Business Server

Twins series is an ATX size redundant power supply, without front end bracket, it is compatible for most PS2 chassis. It is an ideal power supply unit solution for startups, small and medium-sized businesses web or mail server systems, semi-industrial application. It is also the best power supply unit for intelligent home computer station.

Black Ribbon Cable Design

Easy install avoids cables becoming messy, saves the chassis' inner space, lets the airflow smooth, enhances the heat emission effect and finally extends the life span of each component.

FSP Group Twins Black Ribbon Cable Design

DC to DC Module Design

+12V SR circuit, combining both +3.3V and +5V DC-DC modules, offers supreme efficiency, voltage stability and high system compatibility especially in cross regulation (unbalanced load) mode.

FSP Group Twins Black Ribbon Cable DesignFSP Group Twins Ideal for Home or Business Server
FSP Group Twins Redundant PS2 PSU Cable Length

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