MT49H16M16HU-4 MT49H16M16HU-5(D9HHS) MT49H16M18BM-18 ES:B MT49H16M18BM-18:B MT49H16M18BM-25 MT49H16M18BM-25 IT:B MT49H16M18BM-25 IT:B TR MT49H16M18BM-25:B MT49H16M18BM-25:B TR MT49H16M18BM-25E:B