WD WD My Book Duo Compatibility

Hi,

i have WDBFBE0200JBK (https://www.amazon.com/20TB-Desktop-External-Drive-WDBFBE0200JBK-NESN/dp/B074R34DD3)

but i want to change HDD’s to Seagate IronWolf 16 TB. is it possible? How much TB this product can work?