Genuine Dell 230w Power Supply PSU for Dimension 3100, E310 and Optiplex 210L, 320, 330, 360 and GX520 Systems Part /Model Numbers: MC633, PC357, N8372, NC905, P8407, R8042, L230N-00, PS5231-2DS-1F, HP-P2307F3 LF, NPS-230DBA, NPS-230DB-1A, PS-5231-2DFS-LF, L230P-00, H230N-00, N230P-00, N230N-00, L230P-00