HPE 813661-B21 815669-001 535T Dual Port RJ-45 10GB PCI Express 3.0 x8 Ethernet Adapter

The HPE 813661-B21 535T is a high-performance dual-port 10 Gigabit Ethernet adapter that delivers enterprise-grade networking capabilities through standard RJ-45 copper connections. This PCIe 3.0 x8 card provides exceptional bandwidth with dual 10GbE ports, enabling organizations to achieve 20Gbps aggregate throughput for demanding applications like virtualization, database operations, and high-frequency trading. Key advantages include cost-effective copper connectivity that eliminates expensive fiber optic infrastructure, seamless integration with existing Cat6A/7 cabling, and HPE’s proven reliability with comprehensive driver support. The adapter features advanced offload capabilities including TCP/UDP checksum, VLAN tagging, and jumbo frame support up to 9KB, reducing CPU overhead while maximizing network efficiency. Its low-profile design ensures compatibility with space-constrained servers, while energy-efficient operation minimizes power consumption. Ideal for data centers requiring high-speed connectivity without fiber complexity, this adapter represents the optimal balance of performance, affordability, and ease of deployment for modern enterprise networking infrastructure.