DEC DIGITAL MS690-BA 32MB MEMORY MODULE FOR DEC MICROVAX 4000 MODEL 400,  500, 500A, 600, 600A, 700, 700A, 705 & 705A.  NEW IN ORIGINAL FACTORY BOX,  STILL FACTORY SEALED IN STATIC BAG, DEC PART# L4004-BA.  30 DAY WORKING WARRANTY,  ITEM WILL SHIPPED INSIDE OF ANOTHER BOX, TO PROTECT FACTORY BOX & SHIP SAFELY.