Need to break out 1 QSFP28 port into 4 x 10Gb ports on a Cisco N3K (C36180YC-R)

Hello:

I have a C36180YC-R that's going to use 4 of its QSFP28 ports for the vPC peer link. I'd like to break out the remaining two QSFP28 ports into 4 x 10G ports. Questions below.

• Can I break out only two ports? If this is not possible, I have to scrap this approach.
• If yes, what do I plug into the QSFP28 ports to break them out? I haven't seen official Cisco documentation indicating what is allowed (for example, a QSFP+ breakout cable or something like that).