CREATE TABLE table_16409745_1 (dimensions__mm_ VARCHAR, product VARCHAR)

What are the mm dimensions of the Plustek Mobileoffice D28 Corporate?
SELECT dimensions__mm_ FROM table_16409745_1 WHERE product = "Plustek MobileOffice D28 Corporate"
SELECT "dimensions__mm_" FROM "table_16409745_1" WHERE "Plustek MobileOffice D28 Corporate" = "product"