cisco Supplies Cisco Digital Network Architecture (dna) Center In The Form Of A Rack-mountable, Physical Appliance. The Second-generation Cisco Dna Center Appliance Consists Of Either A Cisco Unified Computing System (ucs) C220 M5 Small Form-factor (sff) Chassis Or Cisco Ucs C480 M5 Chassis, Both With The Addition Of One Intel X710-da2 Network Interface Card (nic) And One Intel X710-da4 Nic. Six Versions Of The Second-generation Appliance Are Available: 44-core Appliance: Cisco Part Number Dn2-hw-apl 44-core Promotional Appliance: Cisco Part Number Dn2-hw-apl-u 56-core Appliance: Cisco Part Number Dn2-hw-apl-l 56-core Promotional Appliance: Cisco Part Number Dn2-hw-apl-l-u 112-core Appliance: Cisco Part Number Dn2-hw-apl-xl 112-core Promotional Appliance: Cisco Part Number Dn2-hw-apl-xl-u