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The NC522SFP is an eight lane (x8) PCI Express (PCIe) 10 Gigabit network solution offering the highest bandwidth available in a ProLiant Ethernet adapter. This PCI Express Gen 2 adapter ships with two SFP+ (Small Form-factor Pluggable) cages suitable for connecting to Direct Attach Cable (DAC) or fiber modules supporting SR, LR, and LRM fiber optic cabling. The NC522SFP allows customers both flexibility and the ability to provision their ProLiant servers with bandwidth for every need.

Feature	Description
Model	468332-B21 NOTE: A minimum of two gigabyte (2 GB) of server memory is required per each NC522SFP adapter.
Spare part	468349-001
Kit Contents	The option kit contents consist of the following items: HP NC522SFP Dual Port 10GbE Server Adapter Full height bracket (installed on card) Low-profile bracket Quick install card User documentation and driver download information Product warranty statement
Dual-port 10 Gigabit Ethernet Throughput	The 20,000 Mbps full duplex Ethernet transfer rate per port (40 Gbps aggregate full duplex) delivers outstanding network performance that improves response time and removes bottlenecks for the next generation data center. 10 Gigabit Ethernet bandwidth is ideal for high performance computing, database clusters, iSCSI storage, storage backups, grid systems, virtualization, server and I/O consolidation, fabric consolidation, and more.
PCI Express Interface	HP was an early champion of PCI Express bus technology and has played a key role in the development and industry adoption of the PCI Express specification. The NC522SFP is designed with an eight lane (x8) PCI Express bus based on the PCIe v2.0 standard. The adapter is backward compatible with four lane (x4) PCI Express automatically auto-sensing between x8 and x4 slots.
Jumbo Frames	Jumbo frames (also known as extended frames) permit a 8,000 byte transmission unit (MTU), which is five times the size of standard 1500 byte Ethernet frame. The NC522SFP adapter supports jumbo frames as a way to achieve higher throughput and better CPU utilization. Jumbo frames are particularly useful for database transfers and tape backups.
TCP Stateless Offloading	For overall improved system response, the NC522SFP adapter supports standard TCP/IP offloading techniques including: TCP/IP checksum offload (TCO) moves the TCP and IP checksum offloading from the CPU to the network adapter. Large Send Offload (LSO) or TCP Segmentation Offload (TSO) allows the TCP segmentation to be handled by the adapter rather than the CPU.
Interrupt Coalescing	Interrupt coalescing (interrupt moderation) groups multiple packets, thereby reducing the number of interrupts sent to the host. This process optimizes host efficiency, leaving the CPU available for other duties.
802.1p QoS Tagging	IEEE quality of service (QoS) 802.1p tagging allows the adapter to mark or tag frames with a priority level across a QoS-aware network for improved traffic flow.
Management Support	Like all HP ProLiant server adapters, the NC522SFP adapter ships with agents that can be managed from HP Systems Insight Manager or other management application that support SNMP.
Server Integration	The NC522SFP adapter is a validated, tested, and qualified solution that is optimized for HP ProLiant servers. This approach provides a more robust and reliable networking solution than offerings from other venders and provides users with a single point of contact for both their servers and their The NC522SFP adapter is a validated, tested, and qualified solution that is optimized for HP ProLiant servers. This approach provides a more robust and reliable networking solution than offerings from other venders and provides users with a single point of contact for both their servers and their network adapters.
LED Indicators	Bracket LED indicators show link integrity and network activity for easy troubleshooting.
Server Support	ProLiant DL (rack-optimized): HP ProLiant DL160 G5 HP ProLiant DL160 G5p HP ProLiant DL160 G6 HP ProLiant DL160se G6 HP ProLiant DL165 G5 HP ProLiant DL165 G5p HP ProLiant DL165 G6 HP ProLiant DL165 G7 HP ProLiant DL170h G6 HP ProLiant DL180 G5 HP ProLiant DL180 G6 HP ProLiant DL185 G5 HP ProLiant DL320 G6 HP ProLiant DL360 G5 HP ProLiant DL360 G6 HP ProLiant DL360 G7 HP ProLiant DL365 G5 HP ProLiant DL370 G6 HP ProLiant DL380 G5 HP ProLiant DL380 G6 HP ProLiant DL380 G7 HP ProLiant DL385 G5p HP ProLiant DL385 G6 HP ProLiant DL385 G7 HP ProLiant DL580 G5 HP ProLiant DL580 G7 HP ProLiant DL585 G5 HP ProLiant DL585 G6 HP ProLiant DL585 G7 HP ProLiant DL785 G5 HP ProLiant DL785 G6 HP ProLiant DL980 G7 ProLiant ML (expansion-optimized): HP ProLiant ML330 G6 HP ProLiant ML350 G5 HP ProLiant ML350 G6 HP ProLiant ML370 G5 HP ProLiant ML370 G6 ProLiant SL (scalable line): HP ProLiant SL160z G6 HP ProLiant SL165z G6 HP ProLiant SL165z G7 HP ProLiant SL170s G6 HP ProLiant SL170z G6 HP ProLiant SL2x170z G6 HP ProLiant SL390s G7