Ruth's sister 300W Server Power Supply DPS-300AB-81B/G 20Pin 8 SATA 100-265V

Ruth's sister 300W Server PSU

This Ruth's sister unit is a 300W server power supply built for 7916NP and 7916N16P systems. It delivers rated power between 251W and 300W through a 20Pin main connector, one 4P connector and eight SATA ports. Active PFC corrects the power factor across a 100-265V input range. The non-modular design keeps all cables fixed in a compact 12.5*6.4*10CM form factor.

Suits 7916NP/7916N16P replacement.

This supply suits technicians replacing the original DPS-300AB-81B or DPS-300AB-81G unit in compatible 7916NP and 7916N16P servers. It also fits POE deployments needing eight SATA drives from a single 300W source. Builders who require detachable cables for custom routing should look elsewhere, as the non-modular layout prevents cable reduction. Systems demanding 80 PLUS Bronze, Silver or Gold efficiency ratings are not served by the Other Certification level.

20Pin + 4P + 8 SATA connector layout decides fit

The single specification that determines compatibility is the fixed connector set: one 20Pin main, one 4P auxiliary and eight SATA power plugs. If the target backplane or drive cage uses this exact arrangement, the unit will connect directly. Any chassis needing a 24Pin ATX main connector, additional 6P or 8P PCIe plugs, or a different SATA count cannot use this supply without adapters that are not included.