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Rectangular silver power supply unit with multiple connectors visible

Bipra

Bipra 2 in 1 accessory power supply DPS-250AB-44B

SKU CH-B98Z-0PJ91

250W replacement power supply with 24-pin, 12-pin and 8-pin connectors for compatible Synology and QNAP NAS models

  • 250 W output powers demanding NAS units
  • 100–240 V input works worldwide without a converter
  • 24-pin, 12-pin and 8-pin connectors fit original sockets
  • Compatible with Synology DS1815+, DS1813+, DS1515+ and QNAP TS531
  • Replaces DPS-250AB-44B and DPS-250AB-89B part numbers

Bipra 250W NAS Power Supply

This 250 watt replacement power supply carries the DPS-250AB-44B part number and delivers +12V at 17A, +5V at 12A, +3.3V at 6A, -12V at 3.5A and +5VSB at 2A. It accepts a universal 100-240V input at 47-63Hz and connects through 24-pin, 12-pin and 8-pin connectors. The unit is supplied new for Synology and QNAP NAS systems.

Synology and QNAP NAS owners needing DPS-250AB-44B

This supply fits Synology models DS1010+, DS1511+, DS1512+, DS1513+, DS1515+, DS1813+, DS1815+, RS814, RS815 and DS2015xs plus QNAP TS531. It will not suit systems requiring a different connector layout, a higher wattage rating or a non-DPS-250AB form factor. Builders with proprietary server chassis or redundant power needs should look elsewhere.

Connector layout decides compatibility

The fixed 24-pin, 12-pin and 8-pin connector combination is the single specification that determines whether this unit installs in your NAS. Verify the original power supply uses the identical three-connector arrangement before ordering.

Highlights

  • 250 W output powers demanding NAS units
  • 100–240 V input works worldwide without a converter
  • 24-pin, 12-pin and 8-pin connectors fit original sockets
  • Compatible with Synology DS1815+, DS1813+, DS1515+ and QNAP TS531
  • Replaces DPS-250AB-44B and DPS-250AB-89B part numbers

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the DPS-250AB-44B power supply and which connector alignment mistake should I avoid?

Slide the unit into the NAS chassis until the 24-pin, 12-pin and 8-pin connectors seat fully; the common error is forcing only the 24-pin while the 12-pin and 8-pin remain offset, which prevents power delivery.

What component of the DPS-250AB-44B will need replacement first under continuous operation?

The internal cooling fan is the only moving part and typically wears out before the electrolytic capacitors, requiring a fan swap to maintain airflow.

Which output rail hits its current limit first when the NAS runs sustained heavy workloads?

The +12V rail rated at 17A reaches its limit before the +5V (12A), +3.3V (6A), -12V (3.5A) or +5VSB (2A) rails.

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