Hewlett Packard Enterprise 516733-B21 Blade Switch

The Hewlett Packard Enterprise 516733-B21 Blade Switch is a 16-port internal 10Gb Ethernet switch for HPE BladeSystem c-Class enclosures, delivering high-speed interconnect between blade servers and external network infrastructure. As part of the HPE 6120XG series, it is a managed Layer 2 / Layer 3 switch with 16 internal 10Gb Ethernet downlinks and 10Gb uplink support, providing up to 10 Gbps per port and enabling efficient network traffic management within blade chassis interconnects. The module is designed for blade chassis mounting in data centers, virtualization clusters, and private cloud environments, with chassis-managed cooling to support high-density deployments. Key identifiers include MPN 516733-B21, Spare 517994-001, and Assembly 708069-001, and common uses include enterprise blade server networking, infrastructure expansion, switch replacement, and restoring stable data communication in high-density server deployments.