Our DELL compatible modules meet or exceed the quality of a DELL Original Module and is Guaranteed 100% for Compatability or your money back. DELL Part# 311-0638 512MB PC100 ECC REGISTERED $65.00 DELL Part# 311-0706 512MB PC100 ECC REGISTERED KIT $75.00 DELL Part# 311-0846 256MB PC133 ECC REGISTERED $35.00 DELL Part# 311-0851 512MB PC133 ECC REGISTERED KIT $75.00 DELL Part# 311-0858 1GB PC133 ECC REGISTERED KIT $140.00 DELL Part# 311-1102 256MB PC133 ECC REGISTERED $35.00 DELL Part# 311-1107 512MB PC133 ECC REGISTERED $70.00 DELL Part# 311-1361 256MB PC133 ECC REGISTERED DIMM $35.00 DELL Part# 311-1363 1GB PC133 ECC REGISTERED DIMM $125.00 DELL Part# 311-1835 512MB PC133 ECC REGISTERED DIMM $75.00 DELL Part# 311-4110 1GB PC133 ECC REGISTERED KIT $135.00 DELL Part# 311-4113 2GB PC133 ECC REGISTERED KIT $299.00 DELL Part# 311-4702 128MB PC133 DIMM $17.00 DELL Part# 311-4705 256MB PC133 DIMM $32.00 DELL Part# 311-4708 512MB PC133 DIMM $68.00 DELL Part# 311-7001 128MB PC133 DIMM $18.00 DELL Part# 311-7005 256MB PC133 DIMM $33.00 DELL Part# 311-7007 512MB PC133 DIMM $70.00