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header-product Power Supply Unit FSP Twins PRO 500W

Power Supply Unit FSP Twins PRO 500W

Power Supply FSP Twins PRO 500W Photo 1
Power Supply FSP Twins PRO 500W Photo 2
Power Supply FSP Twins PRO 500W Photo 3
Power Supply FSP Twins PRO 500W Photo 4
Power Supply FSP Twins PRO 500W Photo 1
Power Supply FSP Twins PRO 500W Photo 2
Power Supply FSP Twins PRO 500W Photo 3
Power Supply FSP Twins PRO 500W Photo 4
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Short description

The FSP Twins PRO 500W power supply unit delivers a total power of 520 W with an AC input voltage range of 100 - 240 V and a frequency of 50/60 Hz. It features a 20+4 pin ATX motherboard connector and is non-modular, making it suitable for both PC and server applications. With 80 PLUS Gold certification, it ensures high energy efficiency. The active cooling system with a 4 cm fan keeps the unit cool during operation. Included cables: CPU, PCIe, Peripheral (Molex), and SATA.
Warranty: 2 Years
SKU: 4283743
Manufacturer: fsp/fortron
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Product information

Description

The FSP Twins PRO 500W is a redundant ATX PS2-sized power supply designed for stable operation in PC and server environments. Delivering a combined output of 520 W with wide AC input (100–240 V, 50/60 Hz) and 80 PLUS Gold efficiency, this unit is built for continuous loads and monitoring. It includes a 20+4 pin ATX motherboard connector, active cooling with a 40 mm fan, and fixed (non-modular) cabling including CPU, PCIe, Peripheral (Molex), and SATA connectors.

Advantages

The Twins PRO uses a dual hot-swappable PSU module design that balances power load between two modules and allows replacement of a failed unit without system downtime. A black round ribbon cable design improves heat dissipation and tidiness inside the chassis. The series also includes a power cord locking device to prevent accidental disconnects and supports connection to the FSP Guardian software via USB header for real-time monitoring of input/output power, efficiency, temperatures and system alerts.

Suitable for

  • Home cloud servers
  • Mail servers
  • Small to medium-sized enterprise (SME) web servers
  • PC systems requiring redundant power

Key specifications

  • Total power: 520 W
  • Efficiency: 80 PLUS Gold (approx. 90%)
  • AC input: 100–240 V, 50/60 Hz
  • Motherboard connector: 20+4 pin ATX
  • Cooling: 40 mm fan (active cooling)
  • Product colour: Black
  • Cabling: Non-modular — CPU, PCIe, Peripheral (Molex), SATA

How to use

Install the FSP Twins PRO 500W into an ATX PS2-compatible chassis and connect the 20+4 pin ATX connector to the motherboard along with CPU, PCIe and peripheral cables as required. Connect the unit to AC mains (100–240 V) and secure the power cord using the built-in locking device to prevent accidental disconnection. For redundant operation, install both hot-swappable PSU modules; if one module fails, swap it out while the other module continues supplying power.

Usage recommendations

Connect the Twins PRO to the FSP Guardian software via the internal USB header to monitor power, efficiency and temperature in real time, and schedule replacement of hot-swappable modules proactively based on usage and alert thresholds.

Specifications

Total power:
520 W
Efficiency:
90 %
Motherboard power connector:
20+4 pin ATX
80 PLUS certification:
80 PLUS Gold
Fan diameter:
40 mm
Product colour:
Black
All features

Power

Total power:
520 W
Efficiency:
90 %
Power protection features:
Under voltage, Short circuit, Overheating, Over voltage, Over power, Over current
Max output current (+12V):
43.3 A
Max output current (+5Vsb):
3 A
Input current:
8 - 4
AC input frequency:
50/60
AC input voltage:
100 - 240

Ports & interfaces

Motherboard power connector:
20+4 pin ATX
Floppy disk drive connector:
Yes
Floppy drive power connector:
1
Number of SATA power connectors:
6
Peripheral (Molex) power connectors (4-pin):
2
CPU power connector (4+4 pin):
Yes
PCI Express power connectors (6+2 pin):
4
Cabling type:
Non-Modular

Performance

Purpose:
PC/Server
80 PLUS certification:
80 PLUS Gold
Bearing technology:
Ball bearing
Power supply unit (PSU) form factor:
ATX

Design

Fan diameter:
40 mm
Cooling type:
Active
Product colour:
Black

Weight & dimensions

Height:
190 mm
Width:
86 mm
Depth:
150 mm

Packaging content

Cables included:
SATA, Peripheral (Molex), PCIe, CPU

Logistics data

Harmonized System (HS) code:
84733020

Description

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Customer reviews

Customer questions

FAQ

What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All fsp/fortron products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized fsp/fortron service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: total power, efficiency, motherboard power connector, 80 plus certification, fan diameter, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for Power Supply FSP Twins PRO 500W?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.