A customer with a BL620c G7 wants to add an expansion blade. Since the expansion Blade will
have a halfheight server in the bay above it, which additional component is needed?

A.
A second PCI Express Mezzanine Pass-thru Card

B.
A coupler plate

C.
an additional Storage Expansion Blade

D.
a half-height blade blank

Explanation:

http://h10032.www1.hp.com/ctg/Manual/c01096820.pdf