Synology Delta 250W NAS PSU DPS-250AB-44B DS1815 DS1513 DS1512 QNAP - Power Supply

Synology / Delta 250W NAS Power Supply DPS-250AB-44B | Synology DiskStation NAS & QNAP (24 + 12 + 8 Pin)

Delta Electronics / Synology OEM 250W internal power supply for multi-bay DiskStation NAS enclosures
Part model: DPS-250AB-44B — genuine Delta OEM PSU for Synology DS-series NAS
Cross-compatible models: DPS-250AB-44B / DPS-250AB-89B / DPS-250AB-44 B
Connector layout: 24-Pin + 12-Pin + 8-Pin (24+12+8P) — NAS proprietary connector configuration
Compact flat form factor (150 × 80 × 40 mm) — fits Synology DiskStation internal PSU bay
Stable 250W output for multi-bay NAS with full hard drive population
Built-in overload, over-voltage, and short-circuit protection (OVP / OCP / SCP)
Non-hot-swap design — system must be powered off before replacement

Brand	Delta Electronics (Synology OEM)
Condition	New Original
Model Number	DPS-250AB-44B
Cross-Compatible PN	DPS-250AB-89B / DPS-250AB-44 B
Wattage	250W MAX
Input Voltage	100–240V AC, 50–60Hz, 3.5A
Output	+12V = 17A; +5V = 12A; +3.3V = 6A; +5VSB = 2A; -12V = 0.5A; 250W MAX
Form Factor	Synology NAS Internal PSU (150 × 80 × 40 mm)
Connector Type	24-Pin + 12-Pin + 8-Pin (24+12+8P)
Hot Plug	No — Non-Hot-Swap
Protection	OVP / OCP / SCP

Synology DiskStation NAS:

QNAP NAS:

⚠️ Always verify the part number / model number on your existing PSU label before purchasing.

90-day replacement warranty
Covers manufacturing defects; physical damage and improper installation not included

Non-hot-swap PSU — system must be fully powered off and disconnected from mains before replacement.
Connector layout (24+12+8P) is Synology NAS proprietary — NOT compatible with standard ATX desktop systems.
Verify model DPS-250AB-44B is listed on your NAS PSU label before ordering. Do not order based on NAS model name alone.
New original Delta unit — not refurbished or aftermarket.