IBM Memory 4GB (2x 2GB Kit) PC2-4200 CL4 ECC DDR2 SDRAM RDIMMs, 4 GB, DDR2
IBM Memory 4GB (2x 2GB Kit) PC2-4200 CL4 ECC DDR2 SDRAM RDIMMs. Internal memory: 4 GB, Internal memory type: DDR2, CAS latency: 4, ECC