Brand: Delta · SKU: DPS-300AB-81-B · MPN: DPS-300AB-81-B · Category: Components
The DPS-300AB-81B is a compact SFX-style power supply primarily used in POE-capable NVR/DVR hard-disk recorders. It features a proprietary 20-pin mainboard power feed for the recorder logic and POE circuitry, along with multiple SATA power leads for drives. It is designed for 100–240V AC mains and is a direct replacement for many surveillance recorders requiring a –53V POE rail plus standard 12V/5V drive power. It is NOT a standard ATX PSU. Cross-references include FSP300-20GSV and FSP350-20GSV.
| Form Factor | SFX-style chassis |
|---|---|
| Protections | Over-current, over-voltage, short-circuit (typical) |
| Rated Power | 300W |
| Ventilation | 1x 60mm fan |
| Input Voltage | 100–240V AC, 50/60 Hz (Full range) |
| Drive Connectors | 8 x SATA power connectors |
| Other Connectors | Proprietary -53Volt 4-pin square connector |
| Primary DC Rail 1 | –53V DC (POE feed to mainboard via 20-pin harness) |
| Primary DC Rail 2 | +12V DC / +5V DC (for drive power) |
| Mainboard Connector | 20-pin proprietary connector |
| Warranty | Varies by seller, some listings mention 6 Months or 1 Year + 1 Year Extended Warranty. |
| Weight | 0.9Kg (Product size & weight) |
| Dimensions | 6.3 x 12.5 x 10 cm (2.48 x 4.92 x 3.94 inch) |
This is a specialized 300W SFX power supply built by Delta for use in NVR/DVR hard-disk recorders that require Power over Ethernet (POE) functionality. It is not compatible with standard ATX computers. Its key feature is the inclusion of a -53V rail for POE circuits and ample SATA connectors for multiple hard drives.
Yes, this Delta DPS-300AB-81B 300W POE/NVR Hard Disk Recorder Power Supply (DPS-300AB-81-B) is 100% genuine Delta hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This Delta DPS-300AB-81B 300W POE/NVR Hard Disk Recorder Power Supply includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the DPS-300AB-81-B.