What interface does the card use?

The documented interface is PCI-Express. The product is categorized as a Quad Port 1GbE PCIe server network card, which confirms it is intended for PCIe-based installation in a server environment. This helps procurement teams verify slot compatibility before deployment.

What network speed is listed for this adapter?

The provided specifications list Gigabit Ethernet and a data transfer rate of 1 Gbps. Those are the only performance figures included in the source data, so they should be used as the reference point when matching the adapter to server network requirements.

What type of Ethernet ports are used?

The port type is listed as Ethernet LAN RJ-45. That means the adapter uses standard RJ-45 copper network connections, and the product data also identifies Gigabit Ethernet support with a 1 Gbps rate. These details are important for confirming cabling and switch port compatibility.

Is this an internal adapter?

Yes. The form factor is listed as Internal. Combined with the PCI-Express interface and 4-port Ethernet LAN design, that confirms it is intended to be installed inside a server chassis rather than used as an external network device.

491176-001 - HP 491176-001 NC375T Quad Port Gigabit Adapter

Name: HP 491176-001 NC375T Quad Port Gigabit Adapter
Brand: HP
SKU: 491176-001
Price: 92 USD
Availability: InStock

491176-001 - HP 491176-001 NC375T Quad Port Gigabit Adapter | US IT Hardware

Product overview

HP NC375T 491176-001 is a quad port PCI Express Gigabit Ethernet server adapter for internal installation. The adapter provides four Ethernet LAN ports and supports Gigabit Ethernet data link operation with a 1 Gbps transfer rate. Its PCI-Express interface is designed for server connectivity through RJ-45 ports. The category identifies it as a Quad Port 1GbE PCIe server network card, which fits environments that need multiple wired Ethernet connections in one adapter. The available specifications do not list power consumption or additional feature details, so buyer evaluation should focus on the documented port count, interface type, and Gigabit Ethernet capability. This makes the card a straightforward option for procurement teams looking to match a server’s expansion slot and network port requirements using only the confirmed hardware data provided here.

4 Ethernet LAN RJ-45 ports
PCI-Express server adapter
Gigabit Ethernet, 1 Gbps
Internal form factor
Quad Port 1GbE PCIe card
HP NC375T model

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Featuring

Manufacturer part #	491176-001
Brand	HP
Condition	Refurbished
Model	NC375T
Driver Type	Microsoft certified miniport and teaming drivers
Form Factor	PCI Express adapter card
Card Profile	Low-profile PCI Express adapter card
Product Line	HP NC Series Server Adapter
Product Type	Network adapter
Host Bus Type	PCI Express x4 (electrical) interface
Cabling Standard	IEEE 802.3ab for Gigabit Ethernet over copper

Best for

Server networking
Suitable for server deployments that need Gigabit Ethernet connectivity over a PCI-Express interface. The adapter is identified as an internal server network card with four Ethernet LAN ports.
Multi-port LAN
Useful when a single adapter must provide four wired network connections. The listed port count is 4, and the ports are Ethernet LAN RJ-45.
PCIe expansion
Fits environments that require a PCI-Express network adapter rather than an external device. The product is categorized as a Quad Port 1GbE PCIe server network card.

Frequently asked questions

How many network ports does this adapter provide?

The adapter provides 4 Ethernet LAN ports. That port count is a core part of the product data and makes it a quad-port server network card. For buyers comparing server NICs, the documented number of ports is one of the clearest indicators of how many wired connections the card can support in a single PCI-Express slot.

Details

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Chipset Description	Server-grade Intel chipset

Supported Cable Type	Unshielded Twisted Pair (UTP) Category 5 or better copper cabling

Link Speeds Supported	10 Mbps, 100 Mbps, 1000 Mbps (per port)

Bracket Types Included	Includes both full-height and low-profile (half-height) PCI Express brackets in the kit

Duplex Modes Supported	Half-duplex and full-duplex operation

Transmission Mode Support	Supports both half-duplex and full-duplex transmission modes on all ports

Supported Operating Systems	Microsoft Windows Server 2008 (32-bit and 64-bit editions including Enterprise, Datacenter, Web, Embedded, and R2), Microsoft Windows HPC Server 2008, Microsoft Windows Small Business Server 2011 (SBS V7), Microsoft Windows Server 2003 and 2003 R2 SP2 including Web Edition and Standard (32-bit and x64)

PCI Express Slot Compatibility	Mechanical and electrical support for PCI Express x4, x8 and x16 slots (operates at x4 speed in x8 or x16 slot)

Supported PCI Express Slot Form Factors	Operates in standard full-height and low-profile PCI Express slots

Performance

Aggregate Ethernet Throughput	4000 Mbps combined across four ports
Theoretical Adapter Throughput	Up to 4 Gbps aggregate Ethernet throughput (1 Gbps per port) over four ports
Maximum Ethernet Throughput Per Port	1000 Mbps per port
PCI Express Bus Throughput (Bidirectional)	20 Gbps bidirectional on x4 PCI Express interface
PCI Express Bus Throughput (Unidirectional)	10 Gbps unidirectional on x4 PCI Express interface

Supply Voltage	3.3 V DC input from PCI Express slot
Maximum Power Consumption	14 W maximum at 3.3 V

Networking Ports & Interfaces

Port Count	4 ports
RJ45 Ports	4 x RJ-45 1GBase-T ports
Bus Interface	PCI Express
Network Ports	4 Gigabit Ethernet ports
Interface Type	PCI Express
Network Data Rate	1 Gbit/s per port
Cabling Connector Type	RJ-45 twisted pair copper connectors for each Ethernet port
Ethernet Interface Type	Gigabit Ethernet
Ethernet Port Signaling	10/100/1000T copper Ethernet ports
Host Interface Encoding Rate	PCI Express x4 encoded rate 10 Gbps unidirectional, 20 Gbps bidirectional
Network Technology Supported	10BASE-T, 100BASE-TX, 1000BASE-T over copper
Supported IEEE Ethernet Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab for 10BASE-T, 100BASE-TX, and 1000BASE-T operation over copper
Number of Physical Ethernet Connectors	4 RJ-45 copper connectors

HP 491176-001 NC375T Quad Port Gigabit Adapter