The PowerEdge T300 introduces an advanced, new one-socket chipset and processors specifically designed for superior performance and high availability features. The PowerEdge T300 has:

Intel Celeronc processors, Dual-Core Intelc Core 2 Duo  processors, or Quad-Core Intel Xeon  processors

Six error-correcting code (ECC) Double Data Rate 2 (DDR-2) 667 SDRAM dual in-line memory module (DIMM) sockets for up to 24 GB of memory

1.8 TB (4 x 450 GB) Serial Attached SCSI (SAS) and 4.0 TB (4 x 1000 GB) Serial ATA (SATA) maximum internal storage

For more info about the products click here