Adapter Specs

• Part Numbers: 647594-B21, 649871-001
• Chipset: Broadcom 5719
• Data Rate: 10/100/1000 Mbps (per port)
• Ports: 4 x RJ-45
• Buffer Memory: 4 MB integrated
• Interface: PCI Express Gen2 x4 (compatible with x8, x16)
• Cabling: CAT5 or better twisted pair
• Form Factor: Low profile (full-height and half-height brackets may be included)
• Features: VLAN tagging, jumbo frame support, TCP/IP offload
• Power Efficiency: Low power consumption across all ports

Part Number:

• 647594-B21
• 649871-001

The HPE Broadcom 5719 Quad Port 1GBASE-T 331T Adapter (647594-B21) delivers robust, full line-rate performance across four 1Gb Ethernet ports. Designed for demanding data center environments, this adapter offers low power consumption and is built on Broadcoms proven 5719 chipset. Its engineered for efficient server consolidation, secure networking, and high-density virtualized workloadsmaking it a reliable option for modern enterprise infrastructure.

Equipped with four RJ45 10/100/1000BASE-T ports, the adapter supports a wide range of networking applications and is fully compatible with existing CAT5 or better cabling. It fits in a PCI Express Gen2 x4 slot but is also backward-compatible with x8 and x16 slots. The adapter includes an integrated 4MB buffer for smoother data flow and supports features such as VLAN tagging, jumbo frames, and TCP offload, providing enhanced performance with reduced CPU overhead.