ML150 G6 memory upgrade

Can I upgrade ML150 G6 with six HP 4GB (1x4GB) Dual Rank x8 PC3-10600 (DDR3-1333) Unbuffered CAS-9 Memory Kit 500672-B21 modules?

Specs at this page offer up to 48GB using this UDIMM modules.

But here  I see no support for 4Gb UDIMM's, but RDIMM only.

I'm confised.