Up for sale is a Dell NPS-200PB 200Watt power supply. It is compatible with Dell PS-5201-1D and PS-5201-7D.

The board is used in dell Pentium II-era and PIII-era PCs.

It has a special 6-pin connector to the motherboard.

It is dell proprietary power supply. It won't fit other motherboards.

It has been tested with dell dimension 4100 and V350 and works great.See the last picture