Dell R61D8 1000W desktop power supply is a replacement power unit for supported Dell tower systems. It is identified by DP/N 0R61D8 and model L1000EPS-01, so the full part reference is clear when matching this unit to a system configuration.
The listing specifies a 1000-watt rating and names the Precision 3660 Tower and 3660 XE Tower when originally configured with the 1000-watt PSU option. It also lists the Precision 7865 Tower and XPS Desktop 8960 as compatible systems.
Dell’s part description is “PWR SPLY, 1000W, PLT, D12, SFFXLTN.”