|  | 
| Memory |  
| Option # | Manufacturing Part #
 | Description | Previous Part #
 |  
| X7800A
 [S] | 1GB (2 × 512MB DDR2) Memory Expansion Kit, |  
| 370-6207
 [C] | 512MB DDR2 DIMM, 533 MHz, | n/a |  
| X7801A
 [S] | 2GB (2 × 1GB DDR2) Memory Expansion Kit, |  
| 370-6208
 [C] | 1GB DDR2 DIMM, 533 MHz, | n/a |  
| X7802A
 [S] | 4GB (2 × 2GB DDR2) Memory Expansion Kit, |  
| 370-6209
 [C] | 2GB DDR2 DIMM, 533 MHz, | n/a |  
| X7803A
 [S] | 8GB (2 × 4GB DDR2) Memory Expansion Kit |  
| 370-6210
 [C] | 4GB DDR2 DIMM, | n/a |  
| Table Legend |  
| [F] = Field Replaceable Unit (FRU) [C] = Customer Replaceable Unit (CRU)
 [S] = Supported, but can no longer be ordered with this system
 [N] = No longer supported for this system
 Price = Price this Part
 |  |