Dell Precision T5500, replaces the Dell T5400. The Dell T5500 requires an LCNP4E communication card. Multiple tab numbers for 51154290-xxx with different specs:


51154290-100 - 2.13 processor, dual video, (1) 160GB HD
51154290-300 - 2.13 processor, quad video, (1) 160GB HD
51154290-200 - 2.93 processor, dual video, (2) 160GB HD
51154290-400 - 2.93 processor, quad video, (2) 160GB HD
51154290-500 - 2.26 processor, dual video, (1) 320GB HD
51154290-700 - 2.26 processor, quad video, (1) 320GB HD
51154290-600 - 3.06 processor, dual video, (2) 320GB HD
51154290-800 - 3.06 processor, quad video, (2) 320GB HD