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HPE NC523SFP plug-in card, two SFP+ ports, green PCB, metal bracket

HPE

HPE 593742-001 NC523SFP 10Gb 2-Port Network Card

SKU CH-CDX0-CMSK6 MPN 593742-001

Adds dual 10 Gb Ethernet over SFP+ via PCIe x8 in a 6.6 by 2.7 inch plug-in card

  • Speed10GBase-SR 10GBase-CR
  • Connectors10GBase-SR 10GBase-CR
  • InterfacePCI-Express
  • Dual SFP+ ports deliver two 10 Gb links
  • PCI Express x8 host interface provides high-throughput server connectivity
  • Supports optical fiber and twinaxial cabling for flexible deployment
  • Plug-in card form factor fits standard server expansion slots
  • Compact 6.6" × 2.7" dimensions suit dense chassis installations

HPE NC523SFP 10Gb Server Adapter

The HPE NC523SFP is a 10-gigabit Ethernet card built for ProLiant servers and workstations. It occupies a PCI Express x8 slot and provides two SFP+ ports for optical fiber or twinaxial copper links. The dual-port design suits administrators who need redundant uplinks or link aggregation on a single card.

Sustained 10Gb throughput on dual ports

Under continuous load the adapter maintains line-rate 10GBase-SR and 10GBase-CR traffic across both ports without throttling. The x8 host interface supplies enough bandwidth to keep both 10 Gbps channels full during extended backup, replication or virtualisation workloads. Heat output remains within the card's passive cooling envelope in standard server airflow.

Plug-in card with SFP+ module compatibility

Installation consists of seating the 6.6 by 2.7 inch plug-in card into an available PCI Express x8 slot and inserting compatible SFP+ transceivers or direct-attach cables. The card ships without optics, so buyers must source SFP+ modules that match their fiber type or twinax length. Ensure the chassis bracket aligns with the server's low-profile or full-height slot before ordering.

Highlights

  • Dual SFP+ ports deliver two 10 Gb links
  • PCI Express x8 host interface provides high-throughput server connectivity
  • Supports optical fiber and twinaxial cabling for flexible deployment
  • Plug-in card form factor fits standard server expansion slots
  • Compact 6.6" × 2.7" dimensions suit dense chassis installations

Specifications

BrandHP
Speed10GBase-SR 10GBase-CR
Connectors10GBase-SR 10GBase-CR
InterfacePCI-Express
Shipping weight1.36 kg
Package size25 × 25 × 25 mm

Questions about this item

How does the NC523SFP card handle heat when running continuously in a server?

The plug-in card has no onboard fan and depends on the host chassis airflow to dissipate heat during sustained 10 Gbps operation.

Which SFP+ modules or cables must I supply to use the two ports on this adapter?

The card accepts 10GBase-SR optical transceivers or 10GBase-CR twinaxial direct-attach cables, both sourced separately.

Will the PCI Express x8 interface work in an older server that only offers x4 electrical lanes?

The adapter fits a physical x8 slot and will negotiate down to x4 bandwidth if the platform provides fewer lanes.

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