HP 815100-B21 - HP 32GB (1x32GB) Dual Rank DDR4-2666MHz Memory Ki HP 815100-B21 - HP 32GB (1x32GB) Dual Rank DDR4-2666MHz Memory Kit For IT departments and system integrators seeking a reliable memory solution, the HP 32GB Dual Rank DDR4-2666MHz Memory Kit offers a robust combination of performance and efficiency