HPE581199-001

(NC550SFP) Dual-Port 10 GbE SFP+ Network Adapter(PCIe 2.0 ×8)

The HPENC550SFP (part number 581199-001) is a dual-port 10 Gigabit Ethernet server adapter featuring two SFP+ cages for fiber (SR) or direct-attach copper (DAC) connectivity. Built on an eight-lane PCI Express 2.0 ×8 interface, it delivers up to 10 Gbps per port (20 Gbps aggregated), offering high throughput for demanding virtualization, storage, and data center workloads. Optimized for compatibility with HPEProLiant servers (Gen6/Gen7), this adapter combines power efficiency, performance, and rugged reliability in a cost-effective design.

Features

Powered by the ServerEngines BE4210 controller (Emulex OEM), the NC550SFP offers advanced networking features including support for TCP/UDP checksum offload, Large Send/Receive Offload (LSO/TSO), interrupt coalescing, and IEEE 802.1p QoS tagging to improve performance and reduce CPU utilization. It supports jumbo frames up to 9 KB MTU and is fully compatible with IPv4/IPv6, VLAN tagging, and advanced teaming or LACP configurations. Designed for ProLiant G6/G7 servers from DL and ML series, it supports both low-profile and full-height brackets for flexible installation in rack or tower chassis

Advanced Options

Engineered for enterprise-class server environments, the NC550SFP provides up to 40 Gbps full-duplex aggregate bandwidth with minimal latency and CPU impact. It is thermally validated under HPESea-of-Sensors design,

Product Key Features

• Dual SFP+ (10 GbE) ports for SR fiber or DAC cables
  

• PCIe 2.0 ×8 interface with x4 backward compatibility
  

• Jumbo frames (9 KB), TCP/IP offloads, QoS support
  

• Virtualization optimization with NetQueue, MSI-X, RSS
  

• VLAN tagging, link aggregation, IPv6 support
  

• LED indicators for link/activity; includes full- and low-profile brackets

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Reliability & Performance

drawing approximately 15 W maximum and adapting to Open Compute thermal zones automatically. OEM-tested refurbished models typically include a 90-day warranty; new units may carry longer warranty support depending on vendor or server coverage. The robust chipset and firmware compatibility ensure consistent operation across a wide array of ProLiant platforms.

Key Features :

• • 2 × 10 GbE SFP+ ports (supporting SR fiber or DAC copper)

  • PCIe Gen2 ×8 host interface (auto-sensing ×4 support)

  • Supports jumbo frames (9 KB), TCP/UDP offload, and QoS

  • Virtualization features: MSI-X, RSS, NetQueue

  • VLAN tagging, link aggregation (LACP), IPv6 compatibility

  • LED status indicators; full/low-profile bracket included

Specification	Details
Model Number	581199-001 (also 581201-B21 / 586444-001 / OEM NC550SFP)
Product Type	Dual-Port 10 GbE SFP+ Network Adapter(ServerEngines BE4210)
Host Interface	PCI Express 2.0 ×8 (compatible with ×4 slots)
Ports	2 × SFP+ (DAC or SR fiber supported)
Max Data Rate per Port	10 Gbps (20 Gbps full-duplex per port)
Aggregate Throughput	Up to ~40 Gbps
Jumbo Frame Support	Up to 9,000-byte MTU
Offload Features	TCP/UDP checksum, LSO/TSO, interrupt coalescing, RSS
VLAN & IP Support	VLAN tagging, IPv4 & IPv6
Power Consumption	~10-15 W
Form Factor	Low-profile + full-height brackets
Compatibility	HPEProLiant Gen6/Gen7 servers (DL/ML/SL series)
Diagnostics	Link/activity LEDs, SNMP via agent support
Warranty	90-Day (refurbished); lifetime/several-year for new OEM