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Green PCI network card with a single RJ-45 port and metal bracket

HPE

HPE NC7131Product Gigabit Ethernet Card PCI 10/100/1000Base-T 1 Port

SKU CH-NE41-5W3JE MPN NC7131Product

A single-port Gigabit Ethernet PCI card delivering 10/100/1000Base-T connectivity for servers

  • Flash memory typeHard Drive
  • Low CPU load thanks to bus-mastering at 33 or 66 MHz
  • Works in 32-bit or 64-bit PCI slots for broad compatibility
  • Gigabit speeds over a single RJ-45 port using 10/100/1000Base-T
  • Compact plug-in card measuring 2.8 inches by 7 inches fits standard bays
  • New HPE NC7131 server adapter backed by part number 161665-001

HPE NC7131 Gigabit Server Adapter

The HPE NC7131 is a single-port Gigabit Ethernet card designed for servers and PCs needing a wired network connection. It installs into a standard PCI slot to provide one RJ-45 port for copper cabling. This adapter suits administrators upgrading older systems that lack integrated gigabit connectivity. It is not for builders who need multiple ports or a PCI Express interface.

PCI bus limits at 33 or 66 MHz

The card operates in 32-bit or 64-bit PCI slots running at 33 or 66 MHz using bus-mastering DMA. This legacy parallel bus caps total throughput well below the theoretical line rate of 1000 Mbps when other devices share bandwidth. Latency and CPU offload depend on the host chipset implementation of the PCI specification. Buyers needing the full gigabit rate sustained in both directions should verify their platform can saturate the bus.

Low-profile plug-in card with one RJ-45 jack

The plug-in card measures 2.8 inches in height and 7 inches in length, fitting standard low-profile brackets. A single RJ-45 connector faces the rear panel for Cat 5e or better twisted-pair cable. No external power or additional brackets are required beyond the slot retention screw. The form factor suits rackmount servers with limited slot height but blocks adjacent slots on boards with tight spacing.

How it compares

Measured against everything we stock in 2.5-Inch Internal Laptop HDDs, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 95% of the 645 comparable items (median $66.99).

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Specifications

Product
Brand nameHPE
Storage
Flash memory typeHard Drive

Questions about this item

Is this the only version of the NC7131 available or are there other capacities to choose from?

The NC7131 is a single-port Gigabit Ethernet adapter with a fixed PCI host interface; there are no alternative capacities or port-count versions of this model.

What does the 10/100/1000Base-T rating mean for actual network speed in a server?

The card negotiates at 10 Mb/s, 100 Mb/s or 1000 Mb/s over a single RJ-45 port, so maximum throughput is 1 Gb/s when connected to a Gigabit switch.

What does the PCI interface cap at in practice for this adapter?

The adapter works in 32-bit or 64-bit PCI slots running at 33 MHz or 66 MHz, using bus-mastering DMA to move frames without burdening the CPU.

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