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Product Overview

The FSP Twins PRO 520W replacement module (FSP520-20RAB) is a hot-swappable 520 W power module for the FSP Twins PRO 500W redundant power supply. It is 80 PLUS Gold rated with 90% efficiency and delivers up to 43.3 A on the +12V rail, so it can take over the full load if the second module in the pair fails.

This is a spare module, not a standalone PSU, and it cannot be used without an FSP Twins PRO 500W. It suits home cloud, mail or web servers and small to medium-sized business systems where uptime matters. The Twins PRO design allows a failed module to be swapped out without shutting the system down. It can be monitored in real time with the FSP Guardian software over a USB header.

Specification

• Manufacturer: Fortron
• Model: Twins PRO 520W Module (FSP520-20RAB)
• MPN: 9PA5200503
• EAN: 4713224523632
• Total power: 520 W
• 80 PLUS certification: 80 PLUS Gold
• Efficiency: 90%
• Compatibility: FSP Twins PRO 500W redundant PSU only
• Max output current (+12V): 43.3 A
• Max output current (+5Vsb): 3 A
• AC input: 100 – 240 V, 50/60 Hz, 8 – 4 A
• Form factor: ATX (PS2 size)
• Cabling type: Non-modular
• Motherboard connector: 20+4 pin ATX
• SATA power connectors: 6
• PCIe 6+2 pin connectors: 4
• Cooling: Active, 4 cm fan, ball bearing
• Dimensions (W x H x D): 86 x 190 x 150 mm

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