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The HPE NC550SFP (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 HPE ProLiant servers (Gen6/Gen7), this adapter combines power efficiency, performance, and rugged reliability in a cost-effective design.
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
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 HPE Sea‑of‑Sensors design,
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
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.
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 | HPE ProLiant 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 |

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