 "647909-B21 HP 8GB (1x8GB) Dual Rank LP UDIMM", "Null" "New 647909-B21 UDIMM Wholesale Price 647909-B21"
"Description:HP 8GB (1x8GB) Dual Rank x8 PC3L-10600E(DDR3-1333) Unbuffered CAS-9 Low Voltage Memory KitPart Number(s)
Option Part# 647909-B21
Spare Part# 664696-001
Assembly Part# 647658-081" 
 "HP, 647897-B21, 8GB 2Rx4 PC3L-10600R-9 Kit"@en "HP 647897-B21
"HP, 647897-B21, 8GB 2Rx4 PC3L-10600R-9 Kit"@en 