The IBM 30R5149 is available from Calhoun Technologies. Calhoun Tech can help your company save up to 80% on IT Hardware. Manufacturer: IBM Part Number: 30R5149 Details: IBM 2GB DDR2 SDRAM Memory Module - 2GB 2 x 1GB - 533MHz DDR2-533/PC2-4200 - ECC - DDR2 SDRAM - 240-pin 30R5149