The HP Ethernet 10Gb 2-port 521T Adapter utilizes CAT 6A cabling and is backward compatible to existing 1GBASE-T infrastructure. This allows for a hassle free improvement of network speed without either changing the cables or major upgrade of equipment - thus saving on capital expenditure. This adapter protects applications - data and server infrastructure from cyber-attacks by authenticating digitally signed firmware via a Root of Trust architecture. In addition - they offer Secure Boot - Device-level Firewall and other advanced security features. 867707-B21