| System Model | Description | Part# | OEM Part# | Price |
| Xtrema 426X | 64MB SDRAM Module | 516000-OLV64S | N/A | N/A |
| M4000 DT510 | 32MB SDRAM DIMM | 516000-AA4995 | AA4995 | $120 |
| M4000 DT510 | 64MB SDRAM DIMM | 516000-AG0233 | AG0233 | $120 |
| M4000 DT510 | 128MB SDRAM DIMM | 516000-OL1664S | N/A | $226 |
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