Hello CyPlease refer the below link. Hope it will help you.http://www.cisco.com/en/US/docs/unified_computing/ucs/ts/faults/reference/UCS_SEMs.html#wp1291042
The SKU is UCSB-B420-M3-U and for the complete solution you can also use n20-z0001. Yes B420 M3 has 4 processors with 8 core per processor so you can have 32 cores in B420 M3
Please check mentioned links. I hope it will help.http://www.cisco.com/en/US/prod/collateral/modules/ps2797/ps5138/product_data_sheet09186a008007cd00.pdhttp://www.cisco.com/en/US/prod/collateral/modules/ps5455/eol_c51_599855.html
Hello,Please check mentioned link. I hope it will help.http://www.cisco.com/en/US/docs/switches/datacenter/mds9000/sw/5_2/release/notes/nx-os/mds_nxos_rn_528a.html
