HP 4GB DDR (PC-Pin DIMM Memory Module
Genuine HP Memory (Part No: VH638AA), still in original supplied envelope with HP security seal still in place. HP 4GB PC x 4GB) DIMM (DDR3 SDRAM - MHz) 240-Pin DIMM Unbuffered Non-ECC Memory Matching memory module available for purchase creating 8GB total memory capacity (2 x 4GB kit), total price £. Maximize your PC performance with HP Memory. Upgrading your memory is a cost-effective way to boost your system performance without having to upgrade your processor.