2GB Total memory using 2pc of 1GB PC2-4200 DDR2-533 CL4 16c 128x8 200p SDRAM SODIMM. Genuine CMS brand, CMS is one of the most trusted names in the Computer Memory industry and this product carries a Lifetime Warranty from CMS . MAX MEMORY 2GB SOCKETS 2 Features Compatible with Dell INSPIRON B120